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Speed, Displacement

Speed, Displacement and Velocity Chapter 5

QuestionAnswer
What is the SI(standard) unit of time (s) seconds
What type of quantity is Time Time is a scalar quantity.
What is the symbol for time The symbol for time is t.
What is the number you need to Convert a second into: Milliseconds (ms) Microseconds (μs) Nanoseconds (ns) 1 ms = 1 millisecond = 1 × 10-3 s 1 μs = 1 microsecond = 1 × 10-6 s 1 ns = 1 nanosecond = 1 × 10-9 s
What is the SI unit of distance (m) metre
What type of quantity is Distance Distance is a scalar quantity. This means it has no direction in space.
What is the symbol for distance The symbol for distance is s or d.
What is speed Speed is the rate of change of distance with respect to time.
What is the SI unit of speed (ms^-1) or (m/s) metre per second
What is constant speed Constant speed is where the speed of an object neither slows up or speeds down. Its average speed is always the same.
What is varying speed Varying speed is where the speed of an object varies. Most moving objects have varying speed.
What is instantaneous speed Instantaneous speed is the speed of an object at a specific moment in time, or the rate it would continue to travel if its speed stopped
What is Displacement Displacement is distance in a given direction.
What type of quantity is Displacement Displacement is a vector quantity. It has both size (magnitude) and direction (e.g. 40 degree north-east)
What is the Si unit of Displacement (m) metre
What is Velocity Velocity is the rate of change of displacement with respect to time..
What type of quantity is velocity Velocity is a vector quantity.
What is the SI unit of Velocity (ms^1) or (m/s) metre per second
Formula for average velocity Distance travelled in a given direction over time taken Displacment over time taken
What is constant velocity If an object moves in a straight line and does not speed up or slow down, it has a constant velocity.
What is varying velocity If a moving object does not have constant velocity, it is said to have varying velocity.
Created by: 21JulianM
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