PSH SI Units Practice Unit 4

Front

What is the SI unit for velocity?

Back

The SI unit for velocity is meters per second (m/s).

Front

Which measure of velocity includes direction?

Back

30 m/s, South is a measure of velocity that includes direction.

Front

What is the SI unit for acceleration?

Back

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

Front

What is the SI unit for weight?

Back

The SI unit for weight is Newtons (N).

Front

What is the SI unit for frequency?

Back

The SI unit for frequency is Hertz (Hz).

Front

What is the SI unit for power?

Back

The SI unit for power is watts (W).

Front

Define velocity in terms of displacement and time.

Back

Velocity is defined as the rate of change of displacement with respect to time.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) is calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the relationship between weight and mass?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = mass × gravitational acceleration (W = mg).

Front

What does Hz stand for in terms of frequency?

Back

Hz stands for Hertz, which is the unit of frequency equal to one cycle per second.