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McAuley p2 Physics.csv
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What are the units of force
Newtons
What are the units of distance
Metres
What are the units of time
seconds
What is the unit of momentum
kgm/s
What is the unit of speed
m/s
What is the unit of acceleration
m/s2
On a distance time graph what does a straight line represent?
A stationary object
What does the gradient on a distance time graph represent?
The speed of an object
How do you calculate the gradient on a graph
Divide the change on the Y axis by the change on the x axis
What does a horizontal line on a velocity time graph mean?
Constant Speed
What does a steep line on a velocity time graph show
Fast acceleration
The area under a velocity time graph represents
Distance travelled
"What is the equation involving force
mass and acceleration"
A car has a mass of 2000 kg and is accelerating at 4m/s2 what is the force provided by the engine?
F= MA F = 2000x4 = 8000N
A lorry has a mass 12000 kg and the engine provides a force of 48000N what is its acceleration?
F= ma a=F/m= 48000/12000 = 4m/s2
Momentum =
Mass x velocity
Kinetic energy =
1/2* m * v2
Workdone =
force x distance
"What is the equation for force
change in momentum and time "
Which component is always put in parallel within the circuit?
Voltmeter
Which component is always put in series within the circuit?
Ammeter
What is DC current
Direct Current - Only flows in one direction
What is an AC current
Alternating current - constantly reverses direction.
In a plug the blue wire is
Neutral
In a plug the green and yellow wire is the ..?
Earth Wire
In a plug the brown wire is the ...?
Live Wire
What is the equation relating power energy and time
Power = energy/time
What is the equation relating power current and potential different
power = current x potential difference
Charge =
Current x time
The unit of Charge is ...?
Coulombs
Workdone=
Force x distance
Author
McAuley
ID
143104
Card Set
McAuley p2 Physics.csv
Description
McAuley P2 Physics
Updated
2012-03-22T10:36:51Z
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