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

What is the formula for calculating acceleration?

Back

The formula for acceleration (a) is: a = \frac{\Delta v}{\Delta t}, where \Delta v is the change in velocity and \Delta t is the change in time.

Front

What is positive acceleration?

Back

Positive acceleration occurs when an object's velocity increases over time.

Front

What is negative acceleration?

Back

Negative acceleration, also known as deceleration, occurs when an object's velocity decreases over time.

Front

If an object accelerates from 0 m/s to 20 m/s in 5 seconds, what is its acceleration?

Back

The acceleration is 4 m/s².

Front

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

Back

A flat line indicates that the object is moving at a constant speed.

Front

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

Back

A downward slope indicates that the object is decelerating (negative acceleration).

Front

What is the unit of acceleration?

Back

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

Front

How do you determine if an object is speeding up or slowing down?

Back

If the acceleration and velocity are in the same direction, the object is speeding up. If they are in opposite directions, the object is slowing down.

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's acceleration is constant over time.