Force and Motion Quiz

You push on a wall with 50 N of force. If the wall doesn't move, the wall is pushing back on you with _____of force.

• 50N

• 20N

• 0N

• 10N

The force that acts on bodies in physical contact with each other is:

• Gravitational

• Friction

• Magnetic

• Electrostatic

The force attracting a body to Earth is:

• Magnetic

• Electrostatic

• Frictional

• Gravitational

Fluid resistance is a/an ____________________ force.

• Non-contact

• Magnetic

• Contact

• Electrostatic

Both gravity and friction are example of:

• Motion

• Forces

• Distances

• Inertia

The mass of a body depends on its:

• Size

• Force

• Volume

• Amount of matter

If two forces are said to be equal in magnitude and have opposite direction, then the object is said to have ___________.

• Unbalanced forces

• Balanced forces

• Accelerating

• None of them

When an object moves through water, such as a boat sailing in a river, what effect does water resistance have on the motion of the boat?

• water resistance accelerates the boat

• water resistance slows down the boat

• Water resistance has no impact on the boat's motion.

• Water resistance keeps the speed of the boat constant.

Why do parachutists not fall to the ground quickly?

• They are too light for the air

• They know how to ride the air waves

• There is air resistance

• The air is very dense with water droplets

The wheels on a moving skateboard most likely experience___________.

• Static friction

• Sliding friction

• Rolling friction

• Fluid friction