Test forces

Question 1

2. What is net forces of a block that has a force of 3 newtons to the right and 5 Newton’s to the left?

Answer 1

2N left pg20

Question 2

14. Consider a watermelon that starts from rest and is dropped straight down from tall building. Air resistance can be ignored. Which statement about the watermelon’s motion is FALSE?

Answer 2

The watermelon falls with a constant velocity. Pg 33

Question 3

20. A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with same force applied to it would be

Answer 3

Larger pg. 33

Question 4

21. The relationship among mass, force, and acceleration is explained …

Answer 4

Newton’s 2nd Law of Motion pg. 22

Question 5

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

Answer 5

The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer. Pg. 22

Question 6

28. A net force acting on an object causes the object to accelerate in the direction of the net force

Answer 6

Newton’s 2nd law pg. 22

Question 7

30. To every action, there is an equal and opposite reaction.

Answer 7

Newton’s 3rd law pg. 23