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What is the difference between a transverse and longitudinal wave?

A transverse wave is a wave where the direction of vibration is perpendicular (90 degrees) to the direction of travel (an example would be a wave in the sea), and a longitudinal wave is a wave where the vibr...
JC
Answered by Jared C. • Physics tutor
3878 Views

How does the resistance of a filament lamp change as the voltage increase?

The resistance of a filament lamp increases as the potential difference increases because the filament becomes hot. The movement of electrons (which is what causes the current) makes the atoms inside the fil...
JC
Answered by Jared C. • Physics tutor
59457 Views

Name two properties that both microwave and infrared has.

They travel at the same speed (speed of light) in vacuum, and they can both be polarised.
BK
Answered by Bettiina K. • Physics tutor
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A student investigated how the resistance of a piece of nichrome wire varies box with length.Describe how the student would obtain the data needed for the investigation. Your answer should include a risk assessment for one hazard in the investigation.

methodical approach to answering the question step by step:1) The length of the wire needs to be measured and varied (this is order to get a complete set of results for your experiment )2) Then go through ea...
AL
Answered by Alastair L. • Physics tutor
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David left his basketball outside overnight. At 1am the volume of air within the ball was 1.2m^3 and the outdoor temperature was 5 degrees Celsius. At 3am the temperature was -7 degrees Celsius. What is the volume of air inside the ball at 3am?

For this question we solve it using Charles’ Law. Charles’ law states that the product of volume and temperature gives a constant value. This is illustrated by VT=C. This means that volume and temperature ar...
SK
Answered by Skye K. • Physics tutor
2198 Views