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unit 2 test study G
Mid-Unit 2 Test Study Guide
| Question | Answer |
|---|---|
| Which would have more energy a 10kg ball from 10m or a 5kg ball falling from 25m | 5kg ball falling from 25m |
| what is the potential energy of a 10kg book that is placed on a shelf that is 2.5 meters high | 245J |
| a truck is cruising down the highway at 75mph | Kinetic Energy |
| a snowman is sitting at the top of a hill | Potential Energy |
| a snowball is rolling down a hill with a speed of 2m/s | kinetic and potential |
| a snowflake is falling from the sky | kinetic and potential |
| 16N north and 16N south | balanced |
| 16N north and 16N east | unbalanced |
| 16N north and 16N west | unbalanced |
| how will the motion of a ball on the ground changed if the ball encounters a frictional force that opposes its motion | the ball would slow down |
| what determines the net force when more than one force is acting on an object | the sum of all the forces acting on the object |
| what does is mean if the Net Force acting on an object is 0 N | equilibrium |
| what type of force always causes change in speed, direction, or both | unbalanced force |
| what is a common unbalanced force acting on objects in motion | friction |
| 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 | they will hit at the same time |
| friction acting on a rolling ball to eventually bring the ball to a stop is an example of which type of force | unbalanced |
| what is the force weight of a 45 kg desk | 441N |
| what is the mass of a 35N cat | 3.57 |
Created by:
smileyk
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