5296619
Description
Flashcards by Sarah Collinson, updated more than 1 year ago
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Created by Sarah Collinson
over 8 years ago
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| Question | Answer |
| What is the unit of force? | Newtons, N |
| What are action and reaction forces? | When two objects exert equal and opposite forces on one another |
| What happens when the resultant force on an object is 0? | It will continue to move at the same speed and in the same direction |
| What happens when the resultant force on an object is not 0? | There will be an acceleration or a deceleration |
| What is the thinking distance? | The distance a vehicle travels during the driver's reaction time |
| What is the braking distance? | The distance a car travels under braking force |
| What is the stopping distance? | Thinking distance + braking distance |
| What is an elastic object? | One that regains its original shape once the forces acting on it are removed |
| What does Hooke's Law state? | Extension is directly proportional to force applied, providing the limit of proportionality is not exceeded. |
| What is the unit for spring constant? | N/m |
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