What is the calculation for weight?
mass * force * height
mass * gravitational field strength
0.5 * gravitational field strength
charge = ❌ * ❌
What is the calculation for work done?
force * distance (along line of force)
distance (along line of force) * mass * force
force * extension
True or false : The moment of a force is equal to force * distance * mass ?
energy transferred = potential difference charge power( potential difference, charge, power ) * /( *, / ) work done time charge( work done, time, charge )
❌ = ❌ / ❌
= speed * time
True or false: force applied to a spring = spring constant * extension ?
What three things multiply together to determine gravitational potential energy?
force
gravitational field strength
surface area
volume
mass
distance
height
weight
which of these is the correct calculation for pressure?
force normal to a surface / (area of that surface)^2
area of a surface / force normal to that surface
force normal to a surface / area of that surface
acceleration = Δ speed velocity momentum( speed, velocity, momentum ) / volume mass force time( volume, mass, force, time )
what is the equation for resultant force?
mass * acceleration
weight * acceleration
mass * speed
momentum = ❌ * ❌
Which two of these are the correct equations for power?
useful output energy transfer / total input energy transfer
energy transferred * time
energy transferred / time
charge * voltage
energy transferred / voltage
work done / time
work done * time
True or false: the correct equation for kinetic energy is 1/2 * mass * speed
How would you summarise the two efficiency equations?
total input / total useful output
total useful input / total output
total useful output / total input
total output / total useful input
wavespeed = speed frequency power time( speed, frequency, power, time ) * wavelength distance extension( wavelength, distance, extension )
which of these works out amount of energy transferred?
potential difference * power
potential difference / charge
potential difference / current
charge * current
charge * potential difference
charge / potential difference
How do you work out potential difference?
power * current
power * resistance
time * resistance
current * resistance
current / resistance
Which two equations can be used to find power?
current * potential difference
current^2 * resistance
resistance^2 * current
