Physics - Fall Semester Review

Front

The resistance of an object to any change in its motion is called ______________________.

Back

Inertia

Front

Which of the following correctly describes the motion? an object at rest, an object at constant speed, an object accelerating, an object with changing velocity.

Back

An object at constant speed

Front

A 0.5 kg football experiences a 16 m/s² acceleration when thrown. What force was applied on the football?

Back

8 N

Front

What are the units on the coefficient of friction?

Back

Trick question! It doesn't have units

Front

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle?

Back

36 N

Front

What is the formula for calculating force?

Back

Force = Mass × Acceleration (F = m × a)

Front

Define acceleration in physics.

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.