Describe what happens when 2 objects interact

What is the resultant force ?

Describe what happens to a stationary object is :
A. the resultant force is 0
B. the resultant force is not 0

Describe what happens to a moving object is :
A. the resultant force is 0
B. the resultant force is not 0

What does the gradient of a distance–time graph represent

what is velocity

What does the gradient of a velocity–time graph represent

What is stopping distance

State what can effect a drivers reaction time

Explain why the temperature of the breaks increase when they are used

What effects a vehicles braking distance

DEscribe the term terminal velocity

W = F x d
state the units used in this equation

when is energy transferred ?

discuss the transfer of kinetic energy during space shuttle re entry

State what is meant by conservation of momentum ?

Two railway carriages collide and move off together. Carriage A has a mass of 12,000 kg and moves at 5 m/s before the collision. Carriage B has a mass of 8,000 kg and is stationary before the collision. What is the velocity of the two carriages after the collision?

A gun has a mass of 2·5 kg and a recoil velocity of 8 m/s.
What is the velocity of the bullet if it has a mass of 0·02 kg?

Describe how materials become statically charged ?

Describe what happens when charged materials come close together ?

What is electric charge ?

what is potential difference ?

draw and give the names of all the circuit symbols

give a use of a thermistor

give a use of an ldr

What are Current–potential difference graphs used to show ?

draw a current–potential difference graph for a resistor at constant temperature.

how can the resistance of a component be found ?

describe the relationship between current and potential difference in a resistor (at a constant temperature)

state the units of the below equation
V = I x R

describe how increasing resistance effects the current flowing through a component ?

How do you calculate the potential difference of cells place in series ?

state 3 things that are true for components connected in series

state 2 things that are true for components connected in parallel

The resistance of a filament bulb increases as the temperature of the filament increases.
draw a graph that shows this

The resistance of a filament bulb increases as the temperature of the filament increases.
explain why this occurs ?

The current through a diode flows in one direction only. The diode has a very high resistance in the reverse direction
draw a graph that shows this

What is an LED ?

Why are LEDs being used more ?

What is a LDR ?

What happens to resistance in a thermistor when temperature increases ?

what is d.c current ?

what is alternating current ?

draw an oscilloscope trace for direct current

draw an oscilloscope trace for alternating current

show how you can use an oscilloscope trace to calculate the time period and frequency of a supply

What time of supply is mains electricity and what is its voltage and frequency

show how a plug is wired

What is the function of fuses or circuit breakers ?

How does a fuse work ?

What is an RCCB ?

Which works faster an RCCB or a fuse ?

What safety precaution is taken with devices with metal cases ?

Why might a device not be earthed ?

What is the relationship between fuse thickness and rating ?

what happens when electrical charge flows through a resistor ?

What is a disadvantage of using filament lamps ?

state the units for this equation

E = V x Q

Describe the structure of the atom

State the relative masses and relative electric charges of protons, neutrons and electrons.

Explain why an atom has no overall charge ?

How can atoms become ions ?

what is an isotope ?

what is the mass number and atomic number of an atom ?

what is a radioactive substance ?

Is radioactivity a random or predictable process

What are the origins of background radiation

state the nature of the :
alpha particle
beta particle
gamma radiation

state the properties of the alpha, beta and gamma radiations limited to their relative ionising power, their penetration through materials and their range in air.

explain this in terms of the relative mass and charge of each particle why alpha particles are deflected less than beta particles and in an opposite direction

State the dangers of alpha radiation

State the dangers of beta radiation

State the dangers of gamma radiation

give the uses of alpha radiation ?

gives uses of beta radiation ?

gives uses of alpha radiation ?

what is meant by half life ?

what are the 2 fissionable materials commonly in use ?

what is nuclear fission ?

Explain how fission occurs and what is released ?

The neutrons may go on to start a chain reaction.
draw a sketch to show this

what is nuclear fusion ?

where in nature does nuclear fusion occur ?

describe how stars and planets form

explain why the early Universe contained only hydrogen but now contains a large variety of different elements

describe how the elements heavier the H have been formed by stars

What is the main sequence period of a stars life

describe the life cycle of stars