Motion: Learn the Basics of Physics with Interactive Quizzes

Question 1

An object is moving at a constant speed. Suddenly, a force is applied to it. What will happen to the object's speed?

Accepted Answer

Its speed will increase.

Answer

It will continue moving at the same speed.

Answer

Its speed will decrease.

Answer

It will move in a circular path.

Question 2

According to Newton's first law of motion, what happens to an object at rest or in motion if no external force acts on it?

Accepted Answer

It remains at rest or continues moving with constant velocity

Answer

It accelerates

Question 3

Newton's second law of motion states that the acceleration of an object is:

Accepted Answer

Directly proportional to the net force acting on it and inversely proportional to its mass

Answer

Inversely proportional to the net force acting on it and directly proportional to its mass

Question 4

When the velocity of an object is constant, what can be said about its acceleration?

Accepted Answer

It is zero

Answer

It is non-zero

Question 5

Displacement and distance are related concepts in physics. Which of the following statements correctly describes displacement?

Accepted Answer

It is the change in position of an object

Answer

It is the total length of the path traveled

Question 6

During projectile motion, when does the velocity of an object reach zero?

Accepted Answer

At the highest point of its trajectory

Answer

At the lowest point of its trajectory

Question 7

Friction is a force that:

Accepted Answer

Opposes the relative motion of two surfaces in contact

Answer

Assists the relative motion of two surfaces in contact

Question 8

In the absence of air resistance, how do objects fall under the influence of gravity?

Accepted Answer

All objects fall with the same acceleration

Answer

Heavier objects fall faster than lighter objects

Question 9

Momentum is a physical quantity that describes:

Accepted Answer

An object's mass in motion and its velocity

Answer

An object's weight and its acceleration

Question 10

According to the law of conservation of momentum, in a collision:

Accepted Answer

The total momentum of the system remains constant

Answer

The total momentum of the system changes

Question 11

The SI unit of force is:

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 12

Which of the following is not a factor that affects the amount of friction between two surfaces?

Accepted Answer

Temperature

Answer

Surface roughness

Answer

Normal force

Answer

Coefficient of friction

Question 13

Which of the following statements about Newton's laws of motion is incorrect?

Accepted Answer

The force of gravity between two objects is directly proportional to the sum of their masses.

Answer

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer

The acceleration of an object is directly proportional to the net force acting on the object, and inversely proportional to its mass.

Answer

For every action, there is an equal and opposite reaction.

Question 14

Which of the following physical quantities is a vector?

Accepted Answer

Acceleration

Answer

Distance

Answer

Speed

Answer

Mass

Question 15

Which of the following forces is conservative?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 16

An object is moving in a circle with constant speed. Which of the following statements about the object is true?

Accepted Answer

It has constant acceleration.

Answer

It has no acceleration.

Answer

It has increasing acceleration.

Answer

It has decreasing acceleration.

Question 17

Which of the following units represents work?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Horsepower

Question 18

Which of the following is an example of impulse?

Accepted Answer

A force applied to an object over a short period of time

Answer

A force applied to an object over a long period of time

Answer

A force applied to an object that does not cause any motion

Answer

A force applied to an object that causes it to move in a circular path

Question 19

Which of the following is NOT a law of motion formulated by Isaac Newton?

Accepted Answer

Law of Conservation of Energy

Answer

Law of Inertia

Answer

Law of Acceleration

Answer

Law of Universal Gravitation

Question 20

For every action, there is an equal and opposite reaction. This principle is known as:

Accepted Answer

Newton's Third Law

Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Law of Conservation of Energy

Question 21

Which of the following is a scalar quantity?

Accepted Answer

Temperature

Answer

Velocity

Answer

Acceleration

Answer

Force

Question 22

Identify the conservative force among the following:

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 23

A block of mass 5 kg is pushed across a rough surface with a force of 10 N. If the coefficient of kinetic friction between the block and the surface is 0.2, calculate the block's acceleration.

Accepted Answer

0.5 m/s^2

Answer

1 m/s^2

Answer

2 m/s^2

Answer

4 m/s^2

Question 24

Identify the unit of momentum:

Accepted Answer

Kilogram-meter per second

Answer

Newton-meter

Answer

Joule

Answer

Watt

Question 25

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Temperature

Answer

Time

Question 26

A satellite revolves around the Earth in a circular path with a radius of 6,371 km and a period of 90 minutes. Calculate the satellite's speed.

Accepted Answer

8,400 km/h

Answer

7,900 km/h

Answer

8,900 km/h

Answer

9,400 km/h

Question 27

Which of the following is NOT a component of velocity?

Accepted Answer

Acceleration

Answer

Speed

Answer

Direction

Answer

Displacement

Question 28

An object is traveling at a constant speed of 10 m/s. What is its acceleration?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Cannot be determined

Question 29

According to Newton's second law of motion, the force acting on an object is directly proportional to its:

Accepted Answer

Acceleration

Answer

Mass

Answer

Velocity

Answer

Momentum

Question 30

A car brakes to a stop. What force causes the car to stop?

Accepted Answer

Friction

Answer

Air resistance

Answer

Gravity

Answer

Inertia

Question 31

Which of the following is an example of a projectile?

Accepted Answer

A ball thrown in the air

Answer

A car driving on a straight road

Answer

A satellite orbiting the Earth

Answer

A book resting on a table

Question 32

The equation d = vt + 1/2at^2 represents:

Accepted Answer

Constant acceleration

Answer

Constant velocity

Answer

Projectile motion

Answer

Circular motion

Question 33

A rocket is launched vertically upward. At what point in its trajectory does it experience zero net force?

Accepted Answer

At its highest point

Answer

At launch

Answer

During its descent

Answer

Never

Question 34

Which of the following describes a physical quantity that has both magnitude and direction?

Accepted Answer

Vector quantity

Answer

Displacement

Answer

Scalar quantity

Answer

Acceleration

Question 35

An object moving with constant velocity has:

Accepted Answer

Zero acceleration

Answer

Positive acceleration

Answer

Constant acceleration

Answer

Negative acceleration

Question 36

At the highest point of its trajectory, a projectile launched vertically upward has:

Accepted Answer

Zero velocity

Answer

Maximum positive velocity

Answer

Maximum negative velocity

Answer

Constant velocity

Question 37

A ball is dropped from a height of 10 m. The time taken by the ball to reach the ground is approximately:

Accepted Answer

1.41 s

Answer

2.83 s

Answer

0.71 s

Answer

4.24 s

Question 38

An object is moving with a constant velocity. Which of these is true about the object's acceleration?

Accepted Answer

It is zero.

Answer

It is positive.

Answer

It is constantly changing.

Answer

It is negative.

Question 39

According to Newton's First Law of Motion, an object at rest will remain at rest, and an object in motion will continue moving at a constant velocity unless acted upon by an unbalanced force. Which of the following is another name for Newton's First Law of Motion?

Accepted Answer

The Law of Inertia

Answer

The Law of Gravity

Answer

The Law of Motion

Question 40

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Mass

Answer

Volume

Answer

Speed

Question 41

What is the SI unit of force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Watt

Answer

Joule

Question 42

A projectile is launched at an angle of 30° to the horizontal. Which of the following statements about the projectile's trajectory is true?

Accepted Answer

It is a parabola.

Answer

It is a straight line.

Answer

It is an ellipse.

Answer

It is a circle.

Question 43

Which of the following is NOT a unit of acceleration?

Accepted Answer

m/s

Answer

ft/s^2

Answer

m/s^2

Answer

km/h^2

Question 44

Which of Newton's laws of motion describes the observation that an object in motion will remain in motion unless acted upon by an outside force?

Accepted Answer

First law

Answer

Third law

Answer

Fourth law

Answer

Second law

Question 45

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Volume

Answer

Mass

Answer

Temperature

Question 46

What is the SI unit of force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Joule

Question 47

Which of the following is NOT a type of friction?

Accepted Answer

Magnetic friction

Answer

Sliding friction

Answer

Static friction

Question 48

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Speed

Answer

Mass

Answer

Time

Question 49

Which of Newton's laws of motion states that an object at rest will remain at rest unless acted upon by an unbalanced force?

Accepted Answer

First law

Answer

Second law

Answer

Third law

Answer

Law of universal gravitation

Question 50

A car is traveling at a speed of 20 m/s. If the car's acceleration is 5 m/s/s, what will be its velocity after 10 seconds?

Accepted Answer

70 m/s

Answer

90 m/s

Answer

110 m/s

Answer

50 m/s

Question 51

Which of the following is a unit of acceleration?

Accepted Answer

m/s/s

Answer

m/s

Answer

km/h

Answer

N

Question 52

Which of the following is a factor that affects the friction between two surfaces?

Accepted Answer

Surface roughness

Answer

Air pressure

Answer

Humidity

Answer

Temperature