Forces and Motion Quiz

What is a force?

• A type of energy

• A push or pull acting on an object

• A measure of temperature

• A method of measuring speed

Which of the following is a contact force?

• Gravity

• Magnetism

• Friction

• Electrostatic force

What is the unit of force?

• Kilogram (kg)

• Meter per second (m/s)

• Newton (N)

• Joule (J)

When forces on an object are balanced, the object will:

• Accelerate

• Decelerate

• Change direction

• Remain at rest or move at constant speed

What is the resultant force if two forces of 10 N and 4 N act in opposite directions?

• 14 N

• 6 N

• 4 N

• 10 N

Friction is a force that opposes motion.

• true

• false

Air resistance increases with the speed of the object.

• true

• false

Weight is the same as mass.

• true

• false

Unbalanced forces cause a change in motion.

• true

• false

Upthrust is the downward force acting on an object in a fluid.

• true

• false