AQA Physics Paper 2
1. 'a non contact form acts on each magnet': magnets aren't touching but both
experience a force
2. describe how to plot the magnetic field pattern of a bar magnet: place a
compass near the north pole of the magnet and mark the direction that the compass
points
move the compass around the bar magnet to the other pole, marking at intervals the
direction the compass points
join the points up and add an arrow pointing from the north poe to the south pole
3. explain the effect on the motion of a ball bearing when the switch is closed-
: closing the switch causes a current in the coil
a magnetic field is created
a force of attraction acts on the ball bearing
so the ball bearing accelerates towards the iron nail
4. force =: mass x acceleration
5. transverse wave: the oscillation/ vibration is perpendicular to the direction of
energy transfer
6. why is it difficult to make predictions based on some hypothesises: they
don't say how increasing or decreasing the force increases or decrease the acceleration
7. list of equipment used in trolley ramp investigation: newton metre (force)
ticker timer + tape (change in velocity and time)
8. why use a sloping runway: reduce effect of friction on trolley
9. why us the same trolley through the investigation: so that the mass is constant
as changing the mass would change the acceleration
so there is only one independent variable
10. highest frequency electromagnetic: gamma rays
11. what microwaves suitable for for sending comms to a satellite in space: -
can travel through the atmosphere
12. what events lead to a neutron star forming: explosion of a red super giant or
supernova
13. 1GHZ =: 1x10^9 HZ
1. 'a non contact form acts on each magnet': magnets aren't touching but both
experience a force
2. describe how to plot the magnetic field pattern of a bar magnet: place a
compass near the north pole of the magnet and mark the direction that the compass
points
move the compass around the bar magnet to the other pole, marking at intervals the
direction the compass points
join the points up and add an arrow pointing from the north poe to the south pole
3. explain the effect on the motion of a ball bearing when the switch is closed-
: closing the switch causes a current in the coil
a magnetic field is created
a force of attraction acts on the ball bearing
so the ball bearing accelerates towards the iron nail
4. force =: mass x acceleration
5. transverse wave: the oscillation/ vibration is perpendicular to the direction of
energy transfer
6. why is it difficult to make predictions based on some hypothesises: they
don't say how increasing or decreasing the force increases or decrease the acceleration
7. list of equipment used in trolley ramp investigation: newton metre (force)
ticker timer + tape (change in velocity and time)
8. why use a sloping runway: reduce effect of friction on trolley
9. why us the same trolley through the investigation: so that the mass is constant
as changing the mass would change the acceleration
so there is only one independent variable
10. highest frequency electromagnetic: gamma rays
11. what microwaves suitable for for sending comms to a satellite in space: -
can travel through the atmosphere
12. what events lead to a neutron star forming: explosion of a red super giant or
supernova
13. 1GHZ =: 1x10^9 HZ
