Unbalanced Forces 7

When an object is acted upon by unbalanced forces, it will experience a change in ______.

• Mass

• Motion

• Weight

• Shape

A fruit falling from a tree is an example of an unbalanced force because of the force of ________.

• Friction

• Air resistance

• Gravity

• Tension

According to Newton's Second Law, force is equal to ______ multiplied by acceleration.

• Mass

• Velocity

• Friction

• Distance

In running, a greater _______ force leads to faster acceleration compared to walking.

• Pulling

• Push-off

• Air resistance

• Tension

When a car accelerates, the engine's force must overcome friction and ______ resistance.

• Air

• Magnetic

• Water

• Electrical

Why does a bicycle slow down when brakes are applied?

• The friction between the brake pads and the wheels increases

• The gravity acting on the bike decreases

• The applied force on the pedals stops

• The air resistance suddenly disappears

What force causes an accelerating car to eventually reach a limit in speed?

• Gravity

• Air resistance and friction

• The applied force from the engine

• The normal force of the road

The image shows a soccer player kicking a ball. What type of force is acting on the ball to make it move?

• Balanced Force

• Unbalanced Force

• Static Force

• No Force

In the image, the cyclist is moving uphill. The force that slows the bicycle down is primarily caused by _______.

The image shows a person pushing a heavy box. According to Newton's Second Law (F = ma), if the person applies more force, what will happen to the box's acceleration?

• The acceleration will decrease

• The acceleration will increase

• The acceleration will remain the same

• The box will not move