Acceleration

Front

What is acceleration?

Back

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

If a car accelerates from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (30 m/s - 10 m/s) / 5 s = 4 m/s².

Front

What does a constant speed mean?

Back

Constant speed means that an object is moving at the same speed over time, with no acceleration.

Front

What is deceleration?

Back

Deceleration is a decrease in speed or negative acceleration.

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 positive acceleration indicate?

Back

A positive acceleration indicates that an object is speeding up.

Front

What does a negative acceleration indicate?

Back

A negative acceleration indicates that an object is slowing down.

Front

What is the unit of acceleration?

Back

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

Front

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

Back

A flat line on a velocity-time graph represents constant speed.