Newton's Laws Review

Which term refers to the resistance to start or stop movement?

• Inertia
• Friction
• Unbalanced forces
• Acceleration

Which of Newton's laws is built around the idea that every action has an equal and opposite reaction?

• 1st
• 2nd
• 3rd
• None

Which of Newton's laws is also referred to as the Law of Inertia?

• 1st
• 2nd
• 3rd
• All of the above

What formula is used in Newton's second law?

• F = M / A
• F = M x A
• F = M - A
• F = M + A

What unit do scientists use to measure force?

• grams
• joules
• meters per second per second
• Newtons

When a bus suddenly comes to a stop and passengers jerk forward, which of Newton's laws does this illustrate?

• 1st
• 2nd
• 3rd
• All of the above

Which term refers to the combination of all forces?

• Net force
• Unbalanced forces
• Inertia
• Velocity

Why is it difficult to catch a bowling ball?

• A bowling ball has a lot of inertia due to it's mass meaning it has more resistance to stop moving.
• A bowling ball is heavy!
• Gravity pulls down on the bowling ball more because of it's mass making it difficult to stay in the air.
• A bowling ball has little inertia due to it's mass and it's surface makes it difficult to catch.

Fill in the blank. Newton’s 1st Law of Motion states: “An object at rest will stay at rest and an object in motion will stay in motion unless acted up by ___________________ force.”

• a lot of
• an unbalanced
• an unequal
• too much

Why is running with books in your back up more difficult than running with an empty backpack?

• Books are heavy!
• The inertia of the books moving around in the backpack make it difficult to run.
• More mass in the backpack makes for more gravity pulling down on you.
• Running with a backpack on is not easy no matter what.