1.4 Acceleration Review

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up), negative (slowing down), or zero (constant velocity).

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v_f) - Initial Velocity (v_i)) / Time (t).

Front

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

Back

A flat line indicates constant velocity, which means there is zero acceleration.

Front

What is the unit of acceleration in the International System of Units (SI)?

Back

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

Front

If an object is moving in a circle at a constant speed, is it accelerating?

Back

Yes, because the direction of the object is changing, which means there is a change in velocity.

Front

What is the acceleration of an object that goes from 10 m/s to 30 m/s in 5 seconds?

Back

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

Front

What does negative acceleration indicate?

Back

Negative acceleration, also known as deceleration, indicates that an object is slowing down.

Front

How do you interpret a velocity-time graph with a downward slope?

Back

A downward slope indicates that the object is decelerating (slowing down).

Front

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

Back

Acceleration = (70 m/s - 6.0 m/s) / 4 s = 16 m/s².

Front

What is the significance of the area under a velocity-time graph?

Back

The area under a velocity-time graph represents the distance traveled by the object.