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15 Cards in this Set

  • Front
  • Back

________________ equal distance divided by time.

Speed

When you know both the speed and the direction in which an object is travelling, you know the

velocity

The steepness of a line on a graph is called the

slope

The rate at which velocity changes is called

acceleration

The SI unit of acceleration is

meters per squared second (m/s2)

On a graph showing distance versus time, a horizontal line represents an object that is

moving at a constant speed.

The International System of Units is used by Scientists

all over the world.

An object that is changing direction is an example of

acceleration

A ball being caught is an example of

deceleration

The SI unit for length is the

meter

If a car is speeding up, its initial speed is _______ than its final speed.

less

If you know a car traveled 300 km in 3 hours, you can find its

average speed



If two lines appear on the same motion graph, the line with the steeper ______________ indicates a greater speed.

slope

Motion is relative to a

reference point

The rate at which an object is moving at that instant is its

instantaneous speed