Question 1

What happens to an object when an unbalanced force acts on it?

Accepted Answer

Its speed or direction of motion changes.

Answer

It remains at rest

Answer

It loses mass

Answer

It moves in a straight line at constant speed

Question 2

Which of the following scenarios illustrates an unbalanced force acting on an object?

Accepted Answer

A soccer ball being kicked and moving in a different direction.

Answer

A balloon floating in the air

Answer

A car driving at a constant speed on a straight road

Answer

A book resting on a table

Question 3

When a car suddenly turns left while driving straight, what type of force is acting on it?

Accepted Answer

An unbalanced force is acting on it.

Answer

No force is acting on it

Answer

A balanced force is acting on it

Answer

Gravity is acting on it

Question 4

What can be concluded if an object is accelerating?

Accepted Answer

An unbalanced force is acting on it.

Answer

It is in equilibrium

Answer

No forces are acting on it

Answer

It is moving at a constant velocity

Question 5

What happens to an object that is in motion if the net force acting on it is zero?

Accepted Answer

It continues to move at a constant speed in the same direction.

Answer

It slows down

Answer

It changes direction

Answer

It speeds up

Question 6

Which of the following is a consequence of an unbalanced force acting on an object?

Accepted Answer

The object can speed up, slow down, or change direction.

Answer

The object's speed will remain constant

Answer

The object will not move

Answer

The object will only speed up

Question 7

If a hockey puck slides across the ice and is eventually brought to a stop by friction, what type of forces are acting on it?

Accepted Answer

An unbalanced force is acting on it due to friction.

Answer

The forces are equal and opposite

Answer

No forces are acting at all

Answer

Only balanced forces are acting

Question 8

What is one way to change the motion of a skateboard moving at a constant speed?

Accepted Answer

Apply an unbalanced force to it.

Answer

Keep pushing it harder without changing direction

Answer

Remove all forces acting on it

Answer

Let go of the skateboard

Question 9

What happens to a moving car if the driver suddenly applies the brakes?

Accepted Answer

The car slows down due to an unbalanced force.

Answer

The car turns left

Answer

The car continues at the same speed

Answer

The car speeds up

Question 10

What does it mean if an object experiences a net force?

Accepted Answer

It means there is an unbalanced force acting on the object.

Answer

The object is moving in a circular path

Answer

The forces acting on the object are balanced

Answer

The object is at rest

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