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What are the similarities and differences between an elastic and an inelastic collision?

In both an elastic and inelastic collision momentum is conserved, however in an elastic collision the total kinetic energy is the same before and after the collision. In an inelastic collision kinetic ene...

Answered by Henry G. Physics tutor
23113 Views

Draw the circuit that could be used to investigate how the current through a filament lamp affects its resistance. How could it be used to investigate this? (6 marks)

*Circuit diagram showing a battery, filament lamp, ammeter and variable resistor connected in series, with a voltmeter connected in parallel with the filament lamp.*The resistance of the variable resistor...

Answered by Oliver B. Physics tutor
11544 Views

The maximum speed this cyclist can travel on a level road is 14 m/s. How does cycling uphill affect the maximum speed of this cyclist? Explain your answer.

Maximum speed is lower This is because maximum power output of cyclist is constant but additional work is done against gravityGravitational potential energy of the cyclist is increasedPower in = total ene...

Answered by Stella C. Physics tutor
12367 Views

A reflex occurs the iris of the human eye in response to changes in light levels - describe how these changes occur, referring to the changes in light level in your answer.

I would most likely present a figure of a dilated & undilated pupal and hopefully this will begin their thought process.
To receive full marks for this answer, I will be looking for the below poi...

Answered by Brandon S. Physics tutor
1874 Views

What is red-shift and how does it work?

When we see light, the colour of light that we see is determined by the wavelength of the light. Violet light has the shortest wavelength, and red light has the longest wavelength. Red shift happens when ...

Answered by Tutor317230 D. Physics tutor
1579 Views

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