Ch.1.2 Review

Front

What is constant velocity?

Back

Constant velocity means an object is moving at a fixed speed in a straight line without changing its direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (decelerating).

Front

How do you calculate the time taken to stop an object given its initial velocity and deceleration?

Back

Use the formula: time = (final velocity - initial velocity) / acceleration. For stopping, final velocity is 0.

Front

What is the formula to calculate distance traveled under constant acceleration?

Back

Distance = initial velocity * time + 0.5 * acceleration * time^2.

Front

What does a graph showing increasing velocity look like?

Back

A graph of increasing velocity is a curve that slopes upwards, indicating that the speed of the object is increasing over time.

Front

How do you determine which object is moving fastest from a velocity-time graph?

Back

The object with the steepest slope on the graph is moving the fastest.

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 is deceleration?

Back

Deceleration is a negative acceleration, meaning the object is slowing down.

Front

How do you find the average speed of an object?

Back

Average speed = total distance traveled / total time taken.

Front

What is the significance of a flat line on a distance-time graph?

Back

A flat line indicates that the object is at rest and not moving.