Acceleration: Givens, Unknowns, and Units

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

What are the units of acceleration?

Back

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

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 difference between initial velocity and final velocity?

Back

Initial velocity is the speed of an object before it accelerates, while final velocity is the speed of the object after it has accelerated.

Front

If a car slows down, what type of acceleration is it experiencing?

Back

The car is experiencing negative acceleration, also known as deceleration.

Front

In the equation a = (v_f - v_i) / t, what does v_f represent?

Back

v_f represents the final velocity of the object.

Front

In the equation a = (v_f - v_i) / t, what does v_i represent?

Back

v_i represents the initial velocity of the object.

Front

What does it mean if acceleration is zero?

Back

If acceleration is zero, it means the object is moving at a constant velocity.

Front

What is the significance of a negative acceleration value?

Back

A negative acceleration value indicates that the object is slowing down.

Front

How can you determine if an object is accelerating?

Back

An object is accelerating if its velocity is changing over time, which can be observed through changes in speed or direction.