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Physics Crossword

Across
This type of current only flows in one direction
The rate of change in an object's position (hint: speed + direction)
The rate at which energy is used
Positively charged particle
Coal, oil and natural gas are all this type of fuel
Unit of measure of electric current
A colourless, odourless gas (hint: CH4)
On Earth, a lot of this type of energy comes from the sun
The movement of air can be used to produce this type of power
This can prevent the flow of electric current
Neutral particle
The change in position of an object
The push or pull on an object
Unit of measure of power
Negatively charged particle
The flow of electric charge through a material
This type of current reverses direction periodically
Electrons cannot move easily through this
This type of energy is stored in the bonds between atoms and molecules
Unit of measure of electric potential
Down
Unit of measure of electric charge
Unit of measure of mass
In this machine, a wheel revolves by the flow of water, steam, gas or air to produce power
The difference in electric charge between 2 points in a circuit
This uses solar power to produce electricity
Unit of measure of energy
On Earth, this pulls on objects with an acceleration of 9.81m/s^2
Unit of measure of resistance
This type of electricity is the build up of charge on the surface of an object
A machine that converts energy
These are often referred to as "light particles"
The energy of a moving object is known as this
The energy stored in an object is known as this
The change in an object's velocity
Electrons can move easily through this
Newton's First Law of Motion
The amount of matter in an object
Energy that can be replenished repeatedly is called this
This is often known as heat energy
The force of gravity on an object