Energy
The Energy of an Object in Motion
Kinetic Energy
In a transverse wave, the energy travels ________ the movement of the substance
Right Angles (Perpendicular)
What happens when two NEGATIVELY charged particles interact with each other?
The repel.
Current that moves back and forth in a conductor
Alternating Current
The magnetic force is strongest at the poles, where the magnetic field lines are close together, true or false?
True
Energy Cannot be created or destroyed, it can only change form
Conservation of Energy
If the wavelength is shorter, then the frequency is ____________
Higher.
Which subatomic particle is NOT found in the nucleus of an atom?
Electron
What are the Units of measure for Power?
Watts (W)
Which of the following will increase the strength of an electro-magnet?
Adding more loops of wire to the coil
Increasing the voltage
Using a smaller wire
Turning the battery around the other way
1, 2, 3
Energy that is Stored
Potential Energy
What kind of wave is a sound wave, transverse or longitudinal?
Longitudinal
A material made of atoms that easily let go of their electrons
Conductors
What number system do computers use?
Binary (1 & 0)
Two charged objects attract when _______________.
Charges are opposite (different)
The Ability to do Work or Cause a Change
Energy
What kind of wave is light, transverse or longitudinal?
Transverse.
The velocity that electrons move through a conductor
Current
In a _____________ circuit if I cut a wire in one location, one light may still shine.
Parallel Circuit
True or False,
When the battery is removed from an electromagnet, the wire continues to act like a magnet.
False.
The Sum of the Kinetic Energy and Potential Energy in a system
Total Energy
The steps provided below explain how humans hear sound BUT they are in the wrong order. Put the letters for each step in the correct order here:
A) Sounds waves make the eardrum vibrate
B) Tiny hair cell bundles move and generate electrical signals
C) 3 tiny bones move
D) An electric signal travels along the auditory nerve to the brain
E) Waves pulse through the fluid inside the Cochlea
A, C, E, B, D
The difference in charge between 2 points, it is what pushes the electrons through a conductor.
Voltage
The heating element of a clothes dryer has a resistance of 11 Ohms and is connected across a 240-Volt outlet. What is the current of the heating element?
I = 21.8 Amps
If the magnet in an electromagnets is spinning, the current is ___________ (Direct or Alternating)
Alternating