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# Speed

What is the S.I unit for speed? m/s
What are the two main factors that affect speed? Distance and time
Speed can be measured using a . . . speedometer
What is the fastest possible speed at which energy can travel? The speed of light, 299792498m/s
What is the difference between velocity and acceleration? velocity is the rate at which the position changes and acceleration is the rate at which the speed changes.
Define velocity. The rate of change of a position.
Define acceleration. The rate of change of the velocity of an object
What is faster the speed of light or the speed of sound? The speed of light is faster that is why you see lighting before you hear thunder.
What is the difference between speed and velocity? when talking about velocity we must include a direction, this is not nesscessary when talking about speed.
Created by: emma burrowes

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