Physics paper 1

Question 1

Ohms Law?

Answer 1

V = IR

Question 2

in V = IR of ohms law what is I and R?

Answer 2

I = current
R= Resistance

Question 3

Equation for GPE

Answer 3

E = mgh

Question 4

Gravitational field strength?

Answer 4

9.8 or 10 N/Kg

Question 5

Define power?

Answer 5

Power: the rate of energy transfered/workdone.

Question 6

formula for kinetic enegry

Answer 6

E = 1 mv squared.
2

Question 7

What do alpha Particles consist of?

Answer 7

2 protons and 2 neutrons

Question 8

What do eletrons consist of?

Answer 8

They have no mass number and are negatively charged so 0 for mass number and -1 for proton numbers. for example

Question 9

what does this mean 119 + 7
-

Answer 9

this means 119 plus or minus 7 (1000 -7 get it)? ha ha…

Question 10

what do beta parcials consist of?

Answer 10

they essensially have no mass and are negatively charged.

Question 11

For potential difference charts describe shape of fillerment lamp?

Answer 11

The graph is curved because it is effected by tempurature.

Question 12

For potential difference chart describe a chart for a fixed resistor?

Answer 12

The term fixed means fixed position so basically it isnt effected by tempurature and is therefor a straight line.

Question 13

describe a potential difference chart for a diode?

Answer 13

for a diode a potential difference chart will remain flat then shoot up.