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Force and motion test
Question | Answer |
---|---|
On a distance vs time graph, a horizontal line means | The object is at rest. |
The slope of a speed-time graph tells | Acceleration of an object. |
Net force is equal to | Zero. |
Name 3 ways in which an object can accelerate | Speeding up, slowing down, changing direction. |
When dropping a crumbled piece of paper and a flat piece of paper, which will hit the ground first? | Crumbled piece of paper. Air resistance creates friction on the flat piece of paper causing it to not fall as fast. |
What is constant acceleration? | When the velocity of an object changes by the same amount each second. |
What does a vector arrow tell you? | Length of vector arrow represents the size of the force.Direction of the arrow represents the direction of force. |