Unit 6 Study Guide

What type of energy is the energy of motion?

• potential

• kinetic

• chemical

• gravitational

Which scenario would have the most kinetic energy?

• A 50 gram softball at rest

• A 5 gram marble rolling at 3 m/s

• A 5 gram marble sitting on top of a 50 meter hill

• A 4 gram marble rolling at 10 m/s

How does friction impact a car rolling on the floor?

• It has no impact on motion

• It causes the car to increase its speed

• It causes the car to increase its potential energy

• It causes the car to lose its kinetic energy

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

• Balanced

• Magnetic

• Spring

• Unbalanced

Which law of motion says that you must push or pull objects harder if they have more mass?

• 1st

• 2nd

• 3rd

• 4th

Letting go of a balloon full of air is demonstrating Newton's ______ _______ ________ _________ because the air comes out of the back and the balloon moves forward.

• 1st law of motion

• 2nd law of motion

• 3rd law of motion

• 13th law of motion

What law is best described by inertia?

• 1st

• 2nd

• 3rd

• law of conservation of mass

What Unit do we Measure Force in?

• Newtons

• Joules

• Force

• Kilograms

What is Newton's First Law

• F=ma

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• Friction

A 20 kg bike accelerates at 10 m/s2. what was the force

F = m x a

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons