Forces Review1

_________ opposes motion.

• acceleration
• gravity
• friction
• inertia

An object drops due to the force of _____________.

• inertia
• momentum
• friction
• gravity

To push a box up a hill you have to overcome __________ friction.

• sliding
• rolling
• static
• zero

The upward force on an object falling through the air is ______________.

• gravity
• air current
• air resistance
• magnetism

F = ma represents Newton's ________________.

• 1st law of motion
• 2nd law of motion
• 3rd law of motion
• 4th law of motion

The greater the force on an object the greater it's ____________.

• velocity
• inertia
• acceleration
• gravity

The size of gravitational force between two objects depends upon the __________________.

• speed and direction
• weight and velocity
• masses and direction
• masses and distance

Your ___________ decreases as you get farther from the center of the earth.

• mass
• weight
• speed
• momentum

The statement "to every action there is an equal and opposite reaction" applies to __________________.

• the law of conservation of momentum
• Newton's first law
• Newton's 2nd law
• Newton's 3rd law

If there was no gravity, a horizontally thrown ball would _____________.

• fall to the ground
• travel horizontally
• travel up
• would not move