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State Newton's 3 Laws in words and/or mathematically

1st Law - An object will remain at rest or continue at constant velocity unless acted on by an unbalanced force 2nd Law - F=ma (for a constant mass body) /the net force acting on a body is directly proportio...
MF
Answered by Martha F. • Physics tutor
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Energy generation can occur in both renewable and non-renewable ways. Part a) List three methods of non-renewable energy generation. Part b) List 2 methods of renewable energy generation. [Bonus] Part c) Why might it be beneficial to use renewable?

a) Coal/Nuclear/(Natural) gas. b) Any two from Wind/Hydroelectricity/Solar/Geothermal or any other equally valid form of renewable energy generation. [Bonus] c) Fossil Fuel emissions can release gases into o...
CJ
Answered by Callum J. • Physics tutor
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Explain the difference between a real and a virtual image.

Real images are formed where two real rays cross, and they can be projected onto a screen. Whereas virtual images are seen where virtual rays intersect, they are imaginary and therefore cannot be projected o...
EW
Answered by Ellen W. • Physics tutor
2556 Views

What is the law of conservation of energy?

The law of conservation of energy states that energy cannot be created or destroyed it can only be transferred from one form to another. An example of this is when an object is falling: its gravitational pot...
JR
Answered by Jared R. • Physics tutor
4465 Views

What is the actual difference between the weight and the mass of an object?

Weight and mass are related to each other, but not the same thing. When you step onto a weighing scale and it gives you a number (this could be in kilograms, or pounds, etc), this is your mass- it is telling...
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Answered by Amy S. • Physics tutor
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