Measurements and Motion - Y11

Front

What does a graph with a straight line represent in motion?

Back

Constant Speed

Front

What is the ratio of total distance to total time called?

Back

Average Speed

Front

Why does a falling object reach its terminal velocity?

Back

Gravity force is equal and opposite air resistance force.

Front

What is the ratio of change in velocity with respect to time called?

Back

Acceleration

Front

If an object changes its velocity from 2 m/s to 4 m/s in 10 s, what is its acceleration?

Back

0.2 m/s²

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position, including direction.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What does a negative acceleration indicate?

Back

It indicates deceleration or a decrease in speed.

Front

What is the unit of acceleration in the SI system?

Back

Meters per second squared (m/s²).