Test - Unit 6 Force

Question 1

21. Which of the following best describes how a swimmer moves through the water?

Answer 1

The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer.

U6 C3 Newton’s Laws of Motion pg. 23

Question 2

22. An object that is falling freely has a constant what?

Answer 2

Nothing is constant

U6 C3 Newton’s Laws of Motion pg. 22

Question 3

38.b. What speed will the skydiver eventually reach? What is this speed called?

Answer 3

55m/s

U6 C3 Newton’s Laws of Motion pg. 22

Question 4

46. In a collision, a 25 kg ball moving at 3 m/s transfers all of its momentum to a 5 kg ball. What is the velocity of the 5 kg ball after the collision?

Answer 4

Velocity includes direction. For example, 15m/s forwards.

U6 C1 Describing Motion pg. 3