Physics Acceleration

Front

What is acceleration?

Back

Acceleration is defined as the change in velocity divided by the time interval.

Front

How do you calculate acceleration?

Back

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

Front

If a roller coaster accelerates from 6.0 m/s to 70 m/s in 4 seconds, what is the acceleration?

Back

The acceleration is 16 m/s².

Front

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. What is the acceleration?

Back

The acceleration is 9 m/s².

Front

What is the unit of acceleration?

Back

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

Front

A car starts from rest and reaches a velocity of 20 m/s in 3.5 seconds. What is the acceleration?

Back

The acceleration is 5.7 m/s².

Front

Does acceleration only occur when an object speeds up?

Back

No, acceleration can also occur when an object slows down (deceleration) or changes direction.

Front

What is the formula for calculating the final velocity if you know the initial velocity, acceleration, and time?

Back

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

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 negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down (deceleration).