Unit 2 Motion

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is acceleration?

Back

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

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

What does it mean for an object to be at rest?

Back

An object is at rest when it is not changing its position relative to a reference point.

Front

What is constant speed?

Back

Constant speed means an object covers equal distances in equal intervals of time, regardless of how small the time intervals are.

Front

What is the formula for average acceleration?

Back

Average acceleration = (final velocity - initial velocity) / time taken.

Front

What are the units of acceleration?

Back

Common units of acceleration include meters per second squared (m/s²) and miles per hour per second (mi/h/s).

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

What is a velocity-time graph?

Back

A velocity-time graph shows how the velocity of an object changes over time.

Front

What does a horizontal line on a distance-time graph represent?

Back

A horizontal line on a distance-time graph represents an object that is at rest.