energy
energy is the ability to cause what?
Change
is electricity kinetic or potential
kinetic
something that starts as a wave such as a vibration and causes an interruption
A disturbance
what changes water from one form to another?
A. adding or removing heat
B. gravity or magnetism
C. being balanced or unbalanced
D. none of these
A. adding or removing heat
an engineer
what kind of potential energy does a rock at the top of a hill have?
Gravitational
What is the steady stream called that electricity runs through?
an electrical current
a wave is
A. the distance across the ocean
B. a transfer of energy
C. a regular pattern of motion
D. Both B and C
D. Both B and C
another name for heat energy is
Thermal energy
why did William have to make a windmill for his community?
to power his village and to water crops
what always happens when an object collides?
there is a change and energy is transfered
a path along which electricity flows is called a what?
Circuit
what forms of energy travel in waves?
Light, sound, gravitational, chemical, or none of these?
Light and sound
is heat energy kinetic or potential?
why are wind, sunlight, and water called RENEWABLE energy sources?
Because they can provide power and will never run out or be used up
If a circuit is incomplete what occurs with the electricity?
It will not flow through
what is the distance from crest to crest or trough to trough in a wave?
what way does heat transfer?
Hot to cold
what does not take up a definite amount of space and does not have a definite shape
a gas
The energy that came from coal came from
A. turbines and generators
B. Fossil Fuels
C.Coal-fired power plants
D. Plants that got energy from the sun
D. Plants that got energy from the sun
A material that allows electricity to flow through it is called what?
A conductor
What is the height of the wave?
Amplitude
snow melts when the air around it is warmer because
A. Heat moves from warmer to cooler
B. heat is a form of energy and energy causes change
C. water changes from a solid to a liquid when heat is added
D. all of these
D. all of these
what is the positive and negative end of a battery called?
terminals