SEMESTER 1 EXAM (ADVANCED)

Front

What color would Rudolph's nose appear to be if Santa Claus is moving at 300 m/s?

Back

Red

Front

How can Charles reduce the effect of friction when sliding a chair across a carpeted floor?

Back

By putting a plastic sheet on the floor before he slides the chair.

Front

What do you transfer to an object when you do work on it?

Back

Energy

Front

What is Paula measuring when she counts how many wave crests reach the shore in a given time?

Back

Frequency

Front

What happens to the power required to run an electric fan when you switch it from low speed to high speed?

Back

It increases.

Front

Define friction.

Back

Friction is the resistance that one surface or object encounters when moving over another.

Front

What is the formula for calculating power?

Back

Power = Work / Time.

Front

What is the relationship between frequency and wavelength in waves?

Back

Frequency is inversely proportional to wavelength; as frequency increases, wavelength decreases.

Front

What is the unit of energy?

Back

Joule (J).

Front

Explain the concept of work in physics.

Back

Work is done when a force causes an object to move in the direction of the force.