Physics - Semester 1 Review

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled, while displacement is the shortest straight-line distance from the initial to the final position, including direction.

Front

Define velocity.

Back

Velocity is the rate of change of displacement with respect to time, and it includes both speed and direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity with respect to time.

Front

If a car travels 10 km north and then 6 km south, what is its displacement?

Back

The displacement is 4 km north.

Front

What does a position vs time graph represent?

Back

A position vs time graph shows how an object's position changes over time.

Front

How do you calculate average velocity?

Back

Average velocity is calculated by dividing the total displacement by the total time taken.

Front

What does a flat line on a position vs time graph indicate?

Back

A flat line indicates that the object is at rest, with no change in position over time.

Front

What is the formula for acceleration?

Back

Acceleration (a) = (final velocity (v) - initial velocity (u)) / time (t).

Front

What is the unit of acceleration?

Back

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

Front

If a car accelerates at 5 m/s² for 3 seconds, what is its change in velocity?

Back

Change in velocity = acceleration × time = 5 m/s² × 3 s = 15 m/s.