McAuley p2 Physics.csv

The flashcards below were created by user McAuley on FreezingBlue Flashcards.

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

143104

Card Set

McAuley p2 Physics.csv

Description

McAuley P2 Physics

Updated

2012-03-22T10:36:51Z

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