17104106
Descripción
Test por Alexandra Anderson, actualizado hace más de 1 año
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Creado por Alexandra Anderson
hace casi 6 años
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Pregunta 1
Pregunta
What is the calculation for weight?
Respuesta
-
mass * force * height
-
mass * gravitational field strength
-
0.5 * gravitational field strength
Pregunta 2
Pregunta
charge = [blank_start]current[blank_end] * [blank_start]time[blank_end]
Respuesta
-
current
-
power
-
potential difference
-
time
-
work done
-
frequency
Pregunta 3
Pregunta
What is the calculation for work done?
Respuesta
-
force * distance (along line of force)
-
distance (along line of force) * mass * force
-
force * extension
Pregunta 4
Pregunta
True or false : The moment of a force is equal to force * distance * mass ?
Respuesta
- True
- False
Pregunta 5
Pregunta
energy transferred = [blank_start]power[blank_end] [blank_start]*[blank_end] [blank_start]time[blank_end]
Respuesta
-
potential difference
-
charge
-
power
-
*
-
/
-
work done
-
time
-
charge
Pregunta 6
Pregunta
[blank_start]density[blank_end] = [blank_start]mass[blank_end] / [blank_start]volume[blank_end]
Respuesta
-
volume
-
mass
-
density
Pregunta 7
Pregunta
[blank_start]distance travelled[blank_end] = speed * time
Respuesta
-
distance travelled
Pregunta 8
Pregunta
True or false: force applied to a spring = spring constant * extension ?
Respuesta
- True
- False
Pregunta 9
Pregunta
What three things multiply together to determine gravitational potential energy?
Respuesta
-
force
-
gravitational field strength
-
surface area
-
volume
-
mass
-
distance
-
height
-
weight
Pregunta 10
Pregunta
which of these is the correct calculation for pressure?
Respuesta
-
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
Pregunta 11
Pregunta
acceleration = Δ [blank_start]velocity[blank_end] / [blank_start]time[blank_end]
Respuesta
-
volume
-
mass
-
force
-
time
-
speed
-
velocity
-
momentum
Pregunta 12
Pregunta
what is the equation for resultant force?
Respuesta
-
mass * acceleration
-
weight * acceleration
-
mass * speed
Pregunta 13
Pregunta
momentum = [blank_start]mass[blank_end] * [blank_start]velocity[blank_end]
Respuesta
-
velocity
-
speed
-
acceleration
-
frequency
-
weight
-
mass
-
volume
-
pressure
Pregunta 14
Pregunta
Which two of these are the correct equations for power?
Respuesta
-
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
Pregunta 15
Pregunta
True or false: the correct equation for kinetic energy is 1/2 * mass * speed
Respuesta
- True
- False
Pregunta 16
Pregunta
How would you summarise the two efficiency equations?
Respuesta
-
total input / total useful output
-
total useful input / total output
-
total useful output / total input
-
total output / total useful input
Pregunta 17
Pregunta
wavespeed = [blank_start]frequency[blank_end] * [blank_start]wavelength[blank_end]
Respuesta
-
speed
-
frequency
-
power
-
time
-
wavelength
-
distance
-
extension
Pregunta 18
Pregunta
which of these works out amount of energy transferred?
Respuesta
-
potential difference * power
-
potential difference / charge
-
potential difference / current
-
charge * current
-
charge * potential difference
-
charge / potential difference
Pregunta 19
Pregunta
How do you work out potential difference?
Respuesta
-
power * current
-
power * resistance
-
time * resistance
-
current * resistance
-
current / resistance
Pregunta 20
Pregunta
Which two equations can be used to find power?
Respuesta
-
current * resistance
-
current * potential difference
-
current^2 * resistance
-
resistance^2 * current
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