Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What are the units of acceleration?

Back

The units of acceleration are meters per second squared (m/s²).

Front

How do you calculate acceleration?

Back

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

Front

If a box starts from rest and reaches a velocity of 27 m/s in 3 seconds, what is its acceleration?

Back

9 m/s².

Front

What is the acceleration of a roller coaster that goes from 6.0 m/s to 70 m/s in 4 seconds?

Back

16 m/s².

Front

A rocket accelerates at 90 m/s². How long does it take to reach 2430 m/s?

Back

27 seconds.

Front

If Dorothy speeds up to 9 m/s in 24 seconds from rest, what is her acceleration?

Back

0.375 m/s².

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

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 is the formula for calculating final velocity?

Back

Final velocity can be calculated using the formula: final velocity = initial velocity + (acceleration × time).