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March Test Review
Newton's 3rd Law and Changes in Force and Motion
Question | Answer |
---|---|
What does it mean to collide? | To strike or hit something with any amount of force This is a correct answer |
What is net force? | The sum of all forces acting on an object This is a correct answer |
What is Newton's 3rd Law? | For every action, there is an equal and opposite reaction This is a correct answer |
What is motion? | A change in position compared to other object This is a correct answer |
A baseball bat hits a baseball with a force of 100 Newtons. What the force and direction exerted by the ball on the bat? | The force is 100 Newtons in the opposite direction. This is a correct answer |
If someone jumps off the skateboard, the skateboard will roll backwards because: | It has an equal and opposite force pushing the skateboard backward. |
Why do you think the nozzle is at the bottom of the rocket? | The rocket pushes the gases backward and the gases push the rocket forward. This is a correct answer |
What should you to do change the force on a rocket? | I would change the amount of air pumped into the rocket. This is a correct answer |
Two examples of Newton's 3rd Law | A rocket and a balloon going up |
A hammer's head is made of steel. What force is it resisting? | The force of the nail pushing in the opposite direction. This is a correct answer |
A girl exerts a force of 100 N to shove a boat away. What does the boat do? | Force of the boat exerted on the girl is 100 N. This is a correct answer |
As mass increases, | force must increase too. |
What is happening when a boulder sits on top of a mountain? | The boulder is at rest due to the gravitational force. This is a correct answer |
What could you do to get a larger reading on a spring scale? | Use a 20 gram mass |
Brylie is bowling with a 10-pound ball; Jadyn is using a 12-pound ball. Brylie is winning...by a lot. | Jadyn needs to get a lighter bowling ball. |
What does Mrs. Goff wish? | That all Hero students would score well on today's test! |