CCEA A-Level Physics AS 1 Forces, Energy and Electricity overview quiz quiz

Mass, measured in kilograms

Velocity

Energy, measured in joules

Speed, the rate of covering distance

10 N

8.7 N

5 N

0 N

Force divided by the perpendicular distance from the point to the line of action

Force multiplied by the total time for which the force acts on the body about the point

Force multiplied by the velocity of the point at which the force happens to act

Force multiplied by the perpendicular distance from the point to the line of action

v squared = u squared + 2as

v = u + at, the velocity-time relation

s = ut + half a t squared, for displacement

s = half of (u + v) times t

Equal in size, opposite in direction and acting on the very same body

Equal, opposite, of the same type and act on different bodies

Unequal in size and acting on two completely different bodies

Equal in size and acting together in exactly the same direction

An inelastic collision

Every collision

An elastic collision

Only when objects stick together

10 J

49 J

19.6 J

98 J

Useful output energy divided by total input energy

Total input energy divided by useful output energy

Power divided by time

Work done divided by force

A filament lamp as its temperature rises with current

A metal wire at constant temperature

A semiconductor diode in forward and reverse bias

A thermistor whose resistance falls as it warms up

It stays exactly the same as before

It simply doubles overall

It is multiplied by four

It is halved overall

Energy

Momentum

Mass

Charge

1.3 V

1.5 V

0.2 V

1.7 V