Speed, Mass, and Kinetic Energy Review

Front

How do we find speed?

Back

Speed is calculated by the formula: distance ÷ time.

Front

What is the formula for Kinetic Energy (KE)?

Back

KE = 1/2 mv^2, where m is mass and v is velocity.

Front

What is mass?

Back

Mass is the amount of matter in an object, typically measured in kilograms.

Front

What is the relationship between speed and distance?

Back

Speed is the rate at which distance is covered over time.

Front

What does a steeper line on a distance-time graph indicate?

Back

A steeper line indicates a higher speed.

Front

What happens to kinetic energy if the velocity of an object doubles?

Back

If velocity doubles, kinetic energy increases by a factor of four (since KE = 1/2 mv^2).

Front

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

Back

The unit of mass is the kilogram (kg).

Front

How does mass affect kinetic energy?

Back

Kinetic energy increases with mass; more mass means more kinetic energy at the same velocity.

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 the formula to calculate time if distance and speed are known?

Back

Time = distance ÷ speed.