Unit 5 Quiz: Air resistance/Newton’s laws

What force opposes (stops) the downward motion of objects falling through the air?

• air resistance

• momentum

• acceleration

When you are riding in a car, and it comes to a sudden stop, your body tends to keep moving forward due to which law?

• Newton’s law 1

• Newton’s law 2

• Newton’s law 3

Which object will need the least amount of force in order to accelerate?

• A 10 lb. chair

• A 20 lb. box of rocks

• A 50 lb. box of feathers

If you were in a scientific vacuum (no air) and you dropped a bowling ball and a feather at the same time, which would land first?

• the feather

• the bowling ball

• They would both land at the same time.

As a rocket ship is blasting hot fuel down, the rocket ship will fly up. Which law explains why this happens?

• Newton’s 1st Law

• Newton’s 2nd Law

• Newton’s 3rd Law

If a baseball and a cannonball are dropped from the same height at the same time, and there is no air resistance, which ball will hit the ground first?

• The cannonball lands first

• The balls land at the same time

• The baseball lands first

Which of the following would increase the acceleration of an object?

• Increasing the force pushing

• Increasing the mass

• Neither

This law states that the acceleration of an object depends on the mass and the amount of force applied. ( F = M x A )

• Newton’s 1st Law

• Newton’s 2nd Law

• Newton’s 3rd Law

Air resistance (a)  

• Slows objects down.

• Has no effect.

• Speeds object up.

Which of the following objects has the least acceleration?

• An empty shopping cart pushed with a hard force

• An empty shopping cart pushed with a light force

• A full shopping cart pushed with a light force