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Can you explain the different ways heat can travel?

Heat can travel through 3 different processes: conduction, convection and radiation. Conduction is caused by atoms bumping into each other, transferring energy and therefore heat. An example of this would be...
JG
Answered by Jake G. • Physics tutor
3897 Views

State similarity and difference between the electric field lines and the gravitational field lines around an isolated positively charged metal sphere.

The lines are radial and as distance increases from the sphere the further away the lines get from each other in both. The differences are that gravitational lines are directed towards the sphere and electri...
TS
Answered by Trishi S. • Physics tutor
7103 Views

What is meant by the conservation of energy?

Energy cannot be destroyed or created - it is always transferred between different objects in different forms. Hence, energy is 'conserved'. The most basic example is dropping a stationary rubber ball from a...
JH
Answered by Jonathan H. • Physics tutor
5058 Views

Explain the difference between current and voltage

Current is defined as the amount of electrons that flow through a wire per second Voltage is defined as the amount of energy that each electron carries as it passes through the wire
HK
Answered by Harout K. • Physics tutor
2802 Views

Two pendulums consist of a massless rigid rod of equal length attached to a small sphere of equal radius, with one sphere hollow for one pendulum and the other solid. Each pendulum undergoes damped SHM. Which pendulum has the largest time period?

This question requires a qualitative answer seeing as we do not have an expression for the time period of a pendulum undergoing damped SHM. This is what the examiners will be expecting.There are a few differ...
CG
Answered by Callum G. • Physics tutor
2386 Views