Forces: Interactive Learning Quizzes for Eleventh Grade Science

Question 1

Which of the following forces acts through direct contact between two objects?

Accepted Answer

Friction

Answer

Tension

Answer

Gravity

Answer

Electrostatic force

Question 2

A force of 50 Newtons is applied to an object with a mass of 10 kilograms. What is the acceleration of the object?

Accepted Answer

5 m/s²

Answer

1 m/s²

Answer

10 m/s²

Answer

50 m/s²

Question 3

What is the SI unit of force?

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Answer

Pascal

Question 4

What is the relationship between force, mass, and acceleration?

Accepted Answer

Force equals mass times acceleration (F = ma)

Answer

Force equals mass times velocity (F = mv)

Answer

Force equals half mass times acceleration (F = 1/2ma)

Answer

Force equals half mass times velocity squared (F = 1/2mv²)

Question 5

A ball is thrown vertically upward. At the peak of its trajectory, which force is acting on the ball?

Accepted Answer

Gravity

Answer

Friction

Answer

Air resistance

Answer

Tension

Question 6

What is the key difference between weight and mass?

Accepted Answer

Weight is a force, while mass is a property of matter.

Answer

Weight is a property of matter, while mass is a force.

Answer

Weight and mass are the same thing.

Answer

Weight is measured in kilograms, while mass is measured in newtons.

Question 7

A force of 200 Newtons is applied to a block of ice. The block of ice moves a distance of 5 meters. How much work is done by the force?

Accepted Answer

500 Joules

Answer

100 Joules

Answer

1000 Joules

Answer

2000 Joules

Question 8

Which of the following is NOT a type of contact force?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Normal force

Question 9

A car is traveling at a constant velocity on a flat, horizontal road. What forces are acting on the car?

Accepted Answer

Friction and air resistance

Answer

Friction and gravity

Answer

Air resistance only

Answer

No forces are acting on the car

Question 10

A person is standing on a scale in an elevator that is accelerating upward. What will the scale read?

Accepted Answer

Greater than the person's true weight

Answer

Less than the person's true weight

Answer

Equal to the person's true weight

Answer

Zero

Question 11

Which of the following actions would NOT increase the frictional force between two surfaces?

Accepted Answer

Applying a lubricant

Answer

Increasing the surface roughness

Answer

Increasing the force pushing the surfaces together

Answer

Decreasing the surface area in contact

Question 12

A satellite orbits Earth in a circular path. What is the direction of the net force acting on the satellite?

Accepted Answer

Toward the center of Earth

Answer

Away from the center of Earth

Answer

Tangent to the orbit

Answer

Zero

Question 13

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

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Normal force

Question 14

Newton's first law of motion, also known as the Law of Inertia, describes which of the following scenarios?

Accepted Answer

An object at rest will remain at rest until acted upon by an unbalanced force.

Answer

An object in motion will remain in motion with constant velocity until acted upon by an unbalanced force.

Answer

The acceleration of an object is directly proportional to the net force acting on the object.

Answer

The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Question 15

Which of the following factors affects the strength of gravitational force?

Accepted Answer

Both mass and distance

Answer

Mass of the objects

Answer

Distance between the objects

Answer

Neither mass nor distance

Question 16

An airplane wing is designed to create lift. Which principle is responsible for generating lift?

Accepted Answer

Bernoulli's principle

Answer

Newton's first law of motion

Answer

Newton's second law of motion

Answer

Newton's third law of motion

Question 17

Which of the following actions would decrease the coefficient of friction between two surfaces?

Accepted Answer

Adding oil or grease

Answer

Increasing the surface roughness

Answer

Applying a normal force

Answer

Increasing the temperature

Question 18

A block of wood slides down a frictionless inclined plane. As it slides, which of the following forces is doing work on the block?

Accepted Answer

Gravity

Answer

Normal force

Answer

Friction

Answer

Tension

Question 19

A rocket engine ejects exhaust gases with a downward force. What is the reaction force that keeps the rocket moving upwards?

Accepted Answer

Newton's third law reaction force

Answer

Gravitational force

Answer

Normal force

Answer

Centripetal force

Question 20

A bungee jumper falls from a bridge, experiencing free fall. What is the net force acting on the jumper just before the bungee cord engages?

Accepted Answer

Gravitational force only

Answer

Zero

Answer

Gravitational force and air resistance

Answer

Gravitational force, air resistance, and normal force

Question 21

Identify the contact force in the following options:

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electrostatic force

Answer

Tension force

Question 22

Non-contact forces are characterized by:

Accepted Answer

Acting over a distance

Answer

Requiring physical contact

Answer

Always causing motion

Answer

Being weaker than contact forces

Question 23

A car moving at a constant speed around a curve experiences which forces?

Accepted Answer

Centripetal force and normal force

Answer

Friction and gravitational force

Answer

Friction and normal force

Answer

Gravitational and centripetal force

Question 24

Which unit is used to measure force?

Accepted Answer

Newton

Answer

Joule

Answer

Kilogram

Answer

Meter

Question 25

A force of 100 N is applied to a crate at an angle of 30 degrees to the horizontal. Find the horizontal component of the force.

Accepted Answer

86.6 N

Answer

50 N

Answer

100 N

Answer

173.2 N

Question 26

Which of the following is NOT a contact force? **Forces and Their Interactions**

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Normal force

Question 27

Which of the following is an example of a non-contact force? **Non-Contact Forces**

Accepted Answer

Gravity

Answer

Push

Answer

Pull

Answer

Tension

Question 28

A force of 10 N is applied to an object with a mass of 2 kg. What is the acceleration of the object? **Newton's Second Law of Motion**

Accepted Answer

2 m/s^2

Answer

5 m/s^2

Answer

10 m/s^2

Answer

20 m/s^2

Question 29

A 100-kg crate is sitting on a horizontal floor. What is the normal force acting on the crate? **Normal Force**

Accepted Answer

980 N

Answer

1000 N

Answer

1020 N

Answer

1040 N

Question 30

Which of the following is a unit of force? **Units of Force**

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 31

A ball is thrown vertically upward. At the highest point of its trajectory, which of the following forces is acting on the ball? **Forces in Projectile Motion**

Accepted Answer

Gravity

Answer

Tension

Answer

Air resistance

Answer

Normal force

Question 32

Which of the following can NOT be classified as a type of contact force?

Accepted Answer

Gravitational force

Answer

Static friction

Answer

Sliding friction

Answer

Rolling friction

Question 33

A car maintaining a steady speed experiences a net force of:

Accepted Answer

0 N

Answer

Greater than 0 N

Answer

Less than 0 N

Answer

Equal to the force due to gravity

Question 34

Select the option that represents a non-contact force:

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Elastic force

Question 35

Identify the SI unit of force:

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 36

A mass of 2 kg is subjected to a force of 10 N. Calculate the acceleration produced:

Accepted Answer

2 m/s^2

Answer

5 m/s^2

Answer

10 m/s^2

Answer

20 m/s^2

Question 37

When two objects engage in an interaction, the forces they exert on each other are characterized as:

Accepted Answer

Equal and acting in opposite directions

Answer

Equal and acting in the same direction

Answer

Unequal and acting in opposite directions

Answer

Unequal and acting in the same direction

Question 38

Consider a box resting on a table. The force of gravity acting on the box is:

Accepted Answer

Equivalent to the normal force

Answer

Greater than the normal force

Answer

Less than the normal force

Answer

Zero

Question 39

Which factor has the capacity to alter the direction of an object's motion?

Accepted Answer

Force

Answer

Change in mass

Answer

Change in velocity

Answer

Change in acceleration

Question 40

Which of the following is a non-contact force?

Accepted Answer

Gravity

Answer

Friction

Answer

Normal force

Answer

Tension

Question 41

An object is thrown into the air. What force causes it to fall back to the ground?

Accepted Answer

Gravity

Answer

Buoyancy

Answer

Friction

Answer

Tension

Question 42

Two objects with equal masses collide head-on with equal speeds. What is the total momentum of the system after the collision?

Accepted Answer

Zero

Answer

Half the initial momentum

Answer

Double the initial momentum

Question 43

An object is moving in a circle. Which force is causing the object to move in that path?

Accepted Answer

Centripetal force

Answer

Normal force

Answer

Centrifugal force

Answer

Gravitational force

Question 44

A block is sliding down an inclined plane. Which of the following forces is doing work on the block?

Accepted Answer

Gravity

Answer

Normal force

Answer

Friction

Question 45

A car is traveling at a constant velocity. What is the net force acting on the car?

Accepted Answer

Zero

Answer

Force of gravity

Answer

Thrust force

Answer

Force of friction

Question 46

Which of the following is NOT a type of force?

Accepted Answer

Speed

Answer

Friction

Answer

Gravity

Answer

Tension

Question 47

A book is resting on a table. Which force is acting against the force of gravity?

Accepted Answer

Normal force

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 48

Two objects of equal mass are connected by a string and pulled in opposite directions by two forces of equal magnitude. What will happen to the objects?

Accepted Answer

They will move with equal speeds in opposite directions.

Answer

They will remain stationary.

Answer

They will accelerate towards each other.

Question 49

A car is traveling around a curve. What force is responsible for keeping the car on the curve?

Accepted Answer

Centripetal force

Answer

Friction

Answer

Normal force

Answer

Air resistance

Question 50

Which of the following is a unit of force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Joule

Answer

Watt