Forces and Motion Quizzes: Master Newton's Laws and Gravity

Question 1

Which interaction best demonstrates Newton's Third Law of Motion?

Accepted Answer

A hammer striking a nail

Answer

A car driving on a road

Answer

A ball rolling down a slope

Answer

A book lying on a table

Question 2

An object is placed on a frictionless surface. According to Newton's First Law of Motion, what is the net force acting on the object?

Accepted Answer

Zero

Answer

Equal to the weight of the object

Answer

Equal to the force of friction

Answer

Equal to the force applied to the object

Question 3

Which of Newton's laws of motion describes the relationship between an applied force, an object's mass, and its acceleration?

Accepted Answer

F = ma

Answer

F = mv

Answer

F = mv^2

Answer

F = mg

Question 4

An object is released from rest at a certain height above the ground. As it falls freely, which of the following forces is acting upon it?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 5

A ball is thrown horizontally with a certain initial velocity. What is the shape of its trajectory?

Accepted Answer

Parabolic

Answer

Circular

Answer

Linear

Answer

Exponential

Question 6

Two identical balls, each with a mass of 1 kg, are traveling towards each other with the same velocity of 2 m/s. They collide head-on with each other. What will occur after the collision?

Accepted Answer

They will rebound with the same velocity in opposite directions.

Answer

They will rebound with different velocities.

Answer

Both balls will stop moving.

Answer

One ball will rebound and the other will remain at rest.

Question 7

A rocket engine exerts an upward force on a rocket in space. What is the motion of the rocket?

Accepted Answer

Accelerating upward

Answer

Moving at a constant velocity

Answer

Remaining at rest

Answer

Decelerating

Question 8

A car travels at a constant speed of 60 km/h for 3 hours. How far does the car travel?

Accepted Answer

180 km

Answer

60 km

Answer

90 km

Answer

30 km

Question 9

Which of the following is not one of Isaac Newton's three laws of motion?

Accepted Answer

The Law of Buoyancy

Answer

The Law of Action and Reaction

Answer

The Law of Acceleration

Answer

The Law of Inertia

Question 10

A ball is tossed vertically into the air with a velocity of 10 m/s. What will be its velocity at the highest point of its trajectory?

Accepted Answer

0 m/s

Answer

10 m/s

Answer

15 m/s

Answer

5 m/s

Question 11

A car is moving at a constant velocity of 60 mph. If the mass of the car is 1000 kg, what net force is acting on the car?

Accepted Answer

0 N

Answer

6000 N

Answer

1000 N

Answer

600 N

Question 12

Which of the following everyday objects would have the greatest mass?

Accepted Answer

A car

Answer

A grain of sand

Answer

A feather

Question 13

What is the SI unit of force?

Accepted Answer

Newton

Answer

Second

Answer

Meter

Answer

Kilogram

Question 14

Which of the following factors influence the force of gravity between two objects?

Accepted Answer

Mass and distance between the objects

Answer

Size of the objects

Answer

Color of the objects

Answer

Shape of the objects

Question 15

A ball is dropped from a height of 10 meters. What is its acceleration due to gravity?

Accepted Answer

9.8 m/s^2

Answer

14.7 m/s^2

Answer

4.9 m/s^2

Answer

29.4 m/s^2

Question 16

Which of the following is an example of a contact force?

Accepted Answer

Friction

Answer

Electromagnetic force

Answer

Nuclear force

Answer

Gravity

Question 17

What is the key difference between speed and velocity?

Accepted Answer

Speed is a scalar quantity, while velocity is a vector quantity

Answer

Speed is a measure of distance traveled, while velocity is a measure of acceleration

Answer

Speed is a measure of time taken, while velocity is a measure of displacement

Question 18

Which of the following is a common application of Newton's third law of motion?

Accepted Answer

Rocket propulsion

Answer

Friction

Answer

Electromagnetism

Answer

Gravity

Question 19

Which physical quantity is a force?

Accepted Answer

A push or a pull

Answer

Weight

Answer

Position

Answer

Speed

Question 20

Newton's First Law of Motion states that an object at rest will remain at rest unless acted upon by an unbalanced force. This principle is also known as:

Accepted Answer

The Law of Inertia

Answer

The Law of Acceleration

Answer

The Law of Gravity

Answer

The Universal Law of Motion

Question 21

Identify the SI unit of force

Accepted Answer

Newton (N)

Answer

Meter (m)

Answer

Kilogram (kg)

Answer

Second (s)

Question 22

What is the value of the acceleration due to gravity on Earth?

Accepted Answer

9.8 m/s²

Answer

19.6 m/s²

Answer

29.4 m/s²

Answer

4.9 m/s²

Question 23

Identify a factor that influences the amount of friction between two surfaces

Accepted Answer

Roughness of the surfaces in contact

Answer

Temperature of the surfaces

Answer

Size of the surfaces

Question 24

Describe the mathematical relationship between force, mass, and acceleration

Accepted Answer

F = ma

Answer

F = mv

Answer

F = at

Question 25

Identify an object in motion that is considered a projectile

Accepted Answer

A stone thrown into the air

Answer

A car driving down a road

Answer

A person walking

Answer

A ball rolling on the ground

Question 26

Which of the following is Isaac Newton's second law of motion?

Accepted Answer

Force equals mass times acceleration (F = ma)

Answer

Acceleration equals mass times force (a = mf)

Answer

Velocity equals mass times acceleration (v = ma)

Answer

Force equals acceleration divided by mass (F = a/m)

Question 27

According to Newton's first law of motion, if no unbalanced force acts on an object, the object will:

Accepted Answer

Maintain its current state of motion

Answer

Change its direction of motion

Answer

Accelerate at a constant rate

Answer

Slow down until it stops

Question 28

Which of the following forces is NOT a contact force?

Accepted Answer

Gravitational force

Answer

Frictional force

Answer

Normal force

Answer

Tension force

Question 29

Which of the following is a vector quantity?

Accepted Answer

Force

Answer

Mass

Answer

Time

Question 30

A car drives at a steady speed of 60 mph. What is its acceleration?

Accepted Answer

0 m/s²

Answer

60 mph/s

Answer

1 mph/s

Answer

60 m/s²

Question 31

In the International System of Units (SI), the unit of force is the:

Accepted Answer

Newton (N)

Answer

Meter (m)

Answer

Kilogram (kg)

Answer

Second (s)

Question 32

Which of the following forces requires direct physical contact between two objects?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetic force

Answer

Electrostatic force

Question 33

According to Newton's second law of motion, the acceleration of an object is?

Accepted Answer

Directly proportional to the net force applied to the object and inversely proportional to its mass

Answer

Directly proportional to both the force and the mass of the object

Answer

Inversely proportional to both the force and the mass of the object

Question 34

An object is moving at a constant velocity. Which of the following is true about the net force acting on the object?

Accepted Answer

It is zero

Answer

It is perpendicular to the direction of motion

Answer

It is in the direction of motion

Answer

It is opposite to the direction of motion

Question 35

Which of the following most accurately describes the force of gravity between two objects?

Accepted Answer

Attractive force that decreases as the square of the distance between the objects increases

Answer

Repulsive force that increases as the distance between the objects increases

Answer

Attractive force that is independent of the distance between the objects

Question 36

Which type of force causes a car to stay on a curved road?

Accepted Answer

Centripetal force

Answer

Centrifugal force

Answer

Gravitational force

Answer

Frictional force

Question 37

At the peak of its trajectory, which force is acting on a ball thrown into the air?

Accepted Answer

Gravity

Answer

Gravity and air resistance

Answer

Gravity and buoyancy

Answer

Thrust and gravity

Question 38

What is the unit of force in the International System of Units (SI)?

Accepted Answer

Newton

Answer

Joule

Answer

Kilogram

Answer

Watt

Question 39

Which of the following forces is NOT fundamental in nature?

Accepted Answer

Friction

Answer

Strong nuclear force

Answer

Gravitational force

Answer

Electromagnetic force

Question 40

According to Newton's first law of motion, an object will maintain its state of rest or uniform motion in a straight line unless acted upon by an external force. What is this principle known as?

Accepted Answer

Inertia

Answer

Equilibrium

Answer

Centripetal force

Answer

Momentum

Question 41

Which of the following quantities is a scalar quantity?

Accepted Answer

Mass

Answer

Acceleration

Answer

Force

Answer

Velocity

Question 42

In a collision between two objects, the total momentum of the system remains constant. What principle is this known as?

Accepted Answer

Conservation of Momentum

Answer

Principle of Inertia

Answer

Conservation of Energy

Answer

Newton's Third Law

Question 43

Which of the following factors does NOT influence the gravitational force between two objects?

Accepted Answer

Temperature

Answer

Mass of the objects

Answer

Distance between the objects

Answer

Gravitational constant

Question 44

Which of the following is an example of Newton's third law of motion in action?

Accepted Answer

When you push against a wall, the wall pushes back on you with the same amount of force.

Answer

When a car accelerates, it pushes against the road with a force that is greater than the force of friction acting on it.

Answer

When a ball is thrown into the air, the force of gravity pulls it back down to the ground.

Question 45

Which of the following is an example of a force?

Accepted Answer

A push or pull exerted on an object

Answer

The mass of an object

Answer

The weight of an object

Answer

The shape of an object

Question 46

According to Newton's first law of motion, an object at rest will remain at rest unless:

Accepted Answer

acted upon by an unbalanced force

Answer

it reaches its terminal velocity

Answer

acted upon by any force

Answer

it collides with another object

Question 47

A car accelerates from rest at a constant rate. Which graph best represents the car's velocity over time?

Accepted Answer

A straight line with a positive slope

Answer

A curve that increases and then decreases

Answer

A straight line with a negative slope

Answer

A curve that decreases over time

Question 48

Which of the following factors affects the acceleration of an object?

Accepted Answer

Mass

Answer

Temperature

Answer

Shape

Answer

Color

Question 49

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Area

Answer

Temperature

Question 50

A ball is thrown vertically upward. At the peak of its trajectory, the ball's acceleration is:

Accepted Answer

Zero

Answer

Equal to the acceleration due to gravity

Answer

Equal to the initial acceleration of the ball

Answer

Equal to the final acceleration of the ball

Question 51

Which of the following is the definition of terminal velocity?

Accepted Answer

The constant velocity reached by an object falling through a fluid

Answer

The maximum velocity reached by an object in free fall

Answer

The velocity of an object at the peak of its trajectory

Answer

The velocity of an object in a vacuum