Physics Final Exam

Front

What is the correct label for velocity in physics?

Back

m/s

Front

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

Back

8 s

Front

In the absence of air resistance, which ball has the greater acceleration when a tennis ball and a solid steel ball of the same size are dropped from the same height?

Back

They have the same acceleration.

Front

What is Newton’s second law of motion represented by?

Back

F = ma

Front

What is a vector quantity?

Back

A measure with both magnitude and direction.

Front

What is the formula for calculating work done?

Back

Work = Force × Distance (W = F × d)

Front

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

Back

Watt (W)

Front

What does the term 'acceleration' refer to in physics?

Back

The rate of change of velocity over time.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy = \frac{1}{2}mv^2

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude, while vector quantities have both magnitude and direction.