1550535
Description
Flashcards by ellierosedyson, updated more than 1 year ago
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Created by ellierosedyson
about 10 years ago
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| Question | Answer |
| Newton's second law is? | force = mass x acceleration |
| What is the equation for ACCELERATION? | Acceleration = force / mass |
| Greater the mass of vehicle = | The more force needed to accelerate |
| What are the opposing forces which build up during acceleration? | Air resistance and friction. |
| In acceleration what do opposing forces build up to be equal to? | FORWARD FORCE |
| Once equal to forward force what becomes constant? | Velocity and momentum |
| What is needed to increase velocity? | More forward force |
| To slow a vehicle down what must happen? | More force applied in opposite direction |
| Applying the brakes does what? | Slows vehicle down |
| What is braking distance? | Distance car travels while brakes are applied |
| what has to be reduced during braking distance? | Momentum |
| Two things which mean more force is needed to stop? | 1)BIGGER MASS OF VEHICLE 2)FASTER MOVING VEHICLE |
| List 3 factors which affect braking distance? | 1) WORN TYRES 2) ROAD CONDITIONS 3) WORN BRAKE PADS |
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