RP 2-2 Acceleration and Graphs

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

If a car accelerates from 0 to 70 m/s in 10 seconds, what is its acceleration?

Back

7 m/s².

Front

What does a negative acceleration indicate?

Back

A negative acceleration indicates that the object is slowing down.

Front

What happens to an object when it has zero acceleration?

Back

When an object has zero acceleration, it is either at rest or moving at a constant velocity.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does a flat line on a velocity-time graph represent?

Back

A flat line on a velocity-time graph indicates that the object is moving at a constant velocity.

Front

What does a downward slope on a velocity-time graph indicate?

Back

A downward slope on a velocity-time graph indicates that the object is decelerating.

Front

If a dog runs with an initial speed of 7.5 m/s and slides to a stop in 15 seconds, what is its acceleration?

Back

-0.5 m/s².