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OCR PHYSICS A and AS Level Revision Package.
The bundle contains every Revision Question expected for OCR A Level EXAMS. It has Revision papers and Predictions with Complete Merged Answers.
[Show more]The bundle contains every Revision Question expected for OCR A Level EXAMS. It has Revision papers and Predictions with Complete Merged Answers.
[Show more]▪ Displacement - AnsThe distance traveled in a particular direction - it is a vector with 
magnitude and direction. 
▪ Instantaneous Speed - AnsThe rate of change of distance at a specific moment in time - 
change in distance divided by an infinitesimal interval of time. 
▪ Average Speed - An...
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Add to cart▪ Displacement - AnsThe distance traveled in a particular direction - it is a vector with 
magnitude and direction. 
▪ Instantaneous Speed - AnsThe rate of change of distance at a specific moment in time - 
change in distance divided by an infinitesimal interval of time. 
▪ Average Speed - An...
▪ Prefix units - Ans 
▪ Uncertainties - AnsAdding or subtracting- Add the absolute uncertainties 
Multiplying or dividing- Add the percentage uncertainties 
Raising to a power- Multiply the percentage uncertainties by the power 
▪ Percentage uncertainty in the gradient - Ansuncertainty = ½(li...
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Add to cart▪ Prefix units - Ans 
▪ Uncertainties - AnsAdding or subtracting- Add the absolute uncertainties 
Multiplying or dividing- Add the percentage uncertainties 
Raising to a power- Multiply the percentage uncertainties by the power 
▪ Percentage uncertainty in the gradient - Ansuncertainty = ½(li...
Physical changes - AnsReversible changes 
 What is matter made from? - AnsAtoms 
 Size of an Atom? - Ans1x10-10 
 The overall charge of an atom? - AnsNeutral as the charges cancel each other out 
 Alpha Scattering? - AnsAtoms bouncing back 
 Cause of Scattering? - AnsAtoms containing something dens...
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Add to cartPhysical changes - AnsReversible changes 
 What is matter made from? - AnsAtoms 
 Size of an Atom? - Ans1x10-10 
 The overall charge of an atom? - AnsNeutral as the charges cancel each other out 
 Alpha Scattering? - AnsAtoms bouncing back 
 Cause of Scattering? - AnsAtoms containing something dens...
Describe how ultrasound scanning is used to obtain diagnostic information about internal 
structures of a body. - Ans-Pulses of ultrasound (sent into the body) 
-Wave/ultrasound / pulse/signal is reflected (at the boundary of tissue) 
-Time of delay used to determine depth/thickness 
-The fraction o...
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Add to cartDescribe how ultrasound scanning is used to obtain diagnostic information about internal 
structures of a body. - Ans-Pulses of ultrasound (sent into the body) 
-Wave/ultrasound / pulse/signal is reflected (at the boundary of tissue) 
-Time of delay used to determine depth/thickness 
-The fraction o...
Coal/oil/gas fired power stations - Ans-Burning fuel heats water in a boiler 
-This produces steam 
-Steam drives a turbine that drives an electricity generator 
-Non-renewable, they are all fossil fuels 
Biofuel - AnsFuel taken from any living/recently living organism - e.g animal waste 
What makes...
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Add to cartCoal/oil/gas fired power stations - Ans-Burning fuel heats water in a boiler 
-This produces steam 
-Steam drives a turbine that drives an electricity generator 
-Non-renewable, they are all fossil fuels 
Biofuel - AnsFuel taken from any living/recently living organism - e.g animal waste 
What makes...
Velocity - AnsRate of change of displacement 
 Acceleration - AnsRate of change of velocity 
 Scalar quantity - AnsA quantity that has magnitude only and has no direction 
 Vector quantity - AnsA quantity that has both magnitude and direction 
 Thinking distance - AnsThe distance travelled by the v...
Preview 1 out of 4 pages
Add to cartVelocity - AnsRate of change of displacement 
 Acceleration - AnsRate of change of velocity 
 Scalar quantity - AnsA quantity that has magnitude only and has no direction 
 Vector quantity - AnsA quantity that has both magnitude and direction 
 Thinking distance - AnsThe distance travelled by the v...
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