Test- Forces

Question 1

9. A baseball player swings his bat and misses the ball but hits a fly compared to what the acceleration of the ball would have been with the same force applied to it would be

Answer 1

Larger

Nb.20

Question 2

13. When two forces on the same object are equal and opposite, these forces are called _______ forces.

Answer 2

Balanced

Nb.20

Question 3

15. What is the weight of the box in the picture?

—> 25kg
300

Answer 3

245

Nb.25

Question 4

18. A man weighing 800N is standing on a chair. In order to support the man, what force is the chair exerting?

Answer 4

800N up

Nb.25

Question 5

20. If the block in the picture above has an acceleration of 1 m/s2, what would be the blocks mass?

—>

Answer 5

2kg

Nb.21

Question 6

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

Answer 6

Acceleration

Nb.23

Question 7

24. In the picture, if the card were quickly pulled off the cup like the arrow suggests, what property would explain why the coin falls into the cup rather than moving with the card?

Answer 7

Inertia

Nb.23

Question 8

28. Tendency of an object to resist changes in motion

Answer 8

Inertia

Nb.20

Question 9

32. Related to the amount of force needed to change on objects motion.

Answer 9

Momentum

Nb.23