Physics Flashcards
1
Q
What is the approximate frequency of the UK mains electricity supply?
A
50Hz
2
Q
Suggest 3 improvements for an experiment
A
- Repeat the experiment
- Calculate the mean
- Increase the number of measurements taken
3
Q
What is the name given to the type of energy that causes ice to melt without increasing its temperature?
A
Latent heat of fusion
4
Q
In a parallel circuit, how would you work out the current going through each filament lamp?
A
Add the current through each lamp together to give a total current through the circuit
5
Q
What is the formula for kinetic energy, mass and velocity?
A
Ek = 1/2 x M x V^2
6
Q
What is the specific latent heat?
A
The energy needed to change the state of 1kg mass
7
Q
What is the specific heat capacity?
A
The amount of energy needed to increase the temperature of 1kg mass by 1 degrees.
