IPC Semester Review

Which of the following is the best definition of work?

• something that happens when a force is applied to an object and the object moves
• the amount of force that you apply to an object
• the distance over which an object travels with time
• None of these

A medium that allows electric current to flow through it is a(n):

• conductor
• insulator
• alternator
• none of these

Electric current flows when there is what kind difference across the ends of a conductor? 

• voltage
• mass
• protons
• none of these

For any given wave, energy is most related to the ___________ of the wave.

• crest of the wave
• wavelength of the wave
• amplitude of the wave
• none of these

What is the period of vibration for a wave with a frequency of 50 hertz?

• 50 seconds
• 2 seconds
• 0.02 seconds
• none of these

During constructive interference, two waves moving through the same medium will

• not occupy the same space
• amplify each other
• cause a standing wave
• none of these

All the colors of visible light can be combined to form

• black light
• ultraviolet light
• white light
• none of these

According to the law of conservation of energy, the total amount of energy in the universe is 

• increasing
• decreasing
• constant
• none of these

Acceleration occurs when an object changes its speed or ______.

• direction
• force
• inertia
• mass

Which runner stopped for a rest?

• Albert
• Bob
• Charlie