Paulina P2

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what's speed?

amount of distance covered in certain amount of time.
what's the equation for speed?

distance/time
what's the equation for acceleration?

velocity/time
what's the equation for force?

mass x acceleration
what's mass?

it's amount of stuff that an object has.
what's weight?

it's the amount of force pulling you down.
what's the equation for workdone?

force x distance
what are the units for energy?

jeuls
what's eqaution for gravitational potential energy?

mass x gravity x height
what's power?

it's how quickly it can convert energy. it tells us how quickly energy can be transferred.
what's the equation for power?

energy/time
what are the units for power?

watts
what's the equation of momentum?

mass x velocity
what's charge?

charge is number of electrons in a circuit.
what's current?

it's number of electrons passing through a point per second.
what's background radiation?

it's a radiation emitted by certain resources
what are the different types of background radiation?

radon gas, cosmic rays, medical x-rays, food, nuclear industry, rocks and building materials.
what is nuclear fission?

it's splitting big nuclei into 2 or more smaller nuclei.
what are the 2 sources used in fission?

Uranium and Plutonium
what is nuclear fusion?

it's joining of 2 small nuclei into 1 bigger.
what is the breaking distance?

it's thinking distance and braking distance added together
what are the things that can effect braking distance?
- road conditions e.g. surface
- worn tyres
- brake quality
- weather i.e. rain, ice and snow
- mass of the car
what are the things that effect thinking distance?
- tiredness
- alcohol and drugs
- old age
- distractions e.g. mobile, radio etc.
what are the units for force?

newtons
what are the units for current?

amps
what are the units for charge?

columbs

Author

McAuley

143148

Card Set

Paulina P2

Description

Physics

Updated

2012-03-22T15:35:57Z