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Forces & Motion
7th Grade Science Test Questions
| Question | Answer |
|---|---|
| The formula for Average Speed is | Average Speed = Distance/Time |
| Arturo ran a 3,000-meter race. His running time from start to finish was 10 minutes. What was Arturo’s average speed? | 300 m/s |
| Which is most likely needed when describing the change in position of an object? A. initial speed B. direction change C. reference point D. constant rate | C. reference point |
| Explain why a car that is rolling on a level surface will eventually come to a stop? (not breaks) | Friction |
| Two girls are pulling on opposite ends of a thick rope. Both girls pull on the rope with the same force but in opposite directions. This is an example of a __________________ force. | Balanced |
| Two unequal forces act in opposite directions on a moving object. This is an example of a __________________ force. | Unbalanced |
| Two students pull on a rope with 100 N in opposite directions. If the student on the left increased her force to 125 N, the rope would most likely | go from being motionless to left acceleration. |
| When riding a roller coaster, an electric motor pulls the roller coaster to the top of the first hill. What force pulls the roller coaster down the hill? | gravity |
| The force that prevents a ball rolling on the ground from continuing on its path forever is: | friction |
| Which of the following changes when an unbalanced force acts on an object? | motion |
| If an object has a mass of 50 kg and is accelerating at 2m/s/s, what is the force it will exert? | 100N |
| The formula for Force is | Force = Mass x Acceleration |
| John wants to build a racetrack that will allow his toy cars to travel fast when force is applied. Which material should he use? | Plastic |
| A magnet is placed near a pile of steel paper clips. Which will most likely occur? | The magnet will provide an unbalanced force, pulling the paper clips toward it. |
Created by:
MrsCharity
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