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16 Cards in this Set
- Front
- Back
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What is the different between Speed and Velocity? |
Speed is how fast you're going, whereas velocity specifies the speed and direction you are going |
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What is the formula of Acceleration? |
Change in velocity (final velocity - initial velocity) ÷ time taken |
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What is the different between Weight and Mass? |
Weight is measured in Newton and caused by the gravitational pull whereas Mass is the measured in Kg and the amount of stuff in the object |
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How to find the Weight of an object? |
Mass x Gravitational field strength |
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What is a Resultant force? |
It is the overall force that causes an object to accelerate, decelerate or stay at a steady rate |
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When an object is stationary, what is the resultant force? |
The resultant force is zero |
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When an object is a constant velocity, what is the resultant force? |
The resultant force is zero |
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If an object has non-zero Resultant force, what is happening to the object? |
It is either accelerating or decelerating |
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What is the formula to find the Resultant force? |
Mass x acceleration (m/s2) |
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What is Friction? |
It is the force that causes things to slow down |
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What is the Terminal Velocity? |
It is when an object falls at a consistent rate and the resultant force is at zero and the resistance and weight is balanced, this is because when an object begins to fall the resistance increase as the speed increase which eventually balance the weight. |
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What is Work Done? |
It is the energy that is transferred |
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What is the formula of finding out the Work Done? |
Force x Distance |
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What is the formula of finding the Gravitational Potential Energy? |
Mass x Gravitational force x Height |
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What is the formula of finding the Kinetic Energy? |
0.5 x mass x speed x speed |
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page 52 |
page 52 |
