What is the equation linking velocity (v), displacement (s) and time (t)?
v = velocity (ms-1)
Δs = change in displacement (m)
Δt = time taken (s)
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What is the difference between speed and velocity?
Speed is a scalar quantity as it only has a magnitude.
Velocity is a vector quantity as it has both a magnitude and a direction.
Both measure how fast you're going, but only velocity tells you the direction you're going in.
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Describe what acceleration means in words.
Acceleration is the rate of change in velocity.
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What do we call negative acceleration?
Deceleration.
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In terms of velocity, what do the letters u and v mean?
u is initial velocity.
v is final velocity.
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What is the formula that links acceleration, velocity, and time?
a = acceleration (ms-2)
v = final velocity (ms-1)
u = initial velocity (ms-1)
Δt = time taken (s)
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What is the formula that links acceleration, initial velocity, final velocity, and displacement (distance)?
v = final velocity (ms-1)
u = initial velocity (ms-1)
a = acceleration (ms-2)
s = displacement (m)
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