Physics required practicals
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22 Terms
What component is this?
Diode
What component is this?
Resistor
What component is this?
Filament lamp
What does the voltmeter measure?
Measures the potential difference
What does the ammeter measure?
Measures the current
What does the resistor do?
Limits/controls the flow of current in a circuit
What is specific heat capacity?
the amount of energy needed to raise the temp of 1kg by 1 degree Celsius
What does this experiment show us?
The specific heat capacity of different materials
what is the equation for specific heat capacity?
energy transferred / mass x temperature change
Why is the material insulated when investigating specific heat capacity?
To stop heat escaping into the atmosphere, keeping the experiment accurate and precise.
When investigating specific heat capacity, why is your answer not the ‘true’ answer?
not all heat from the heater was transferred into the block and through to the thermometer
Why is the temperature increase slower at first when investigating SHC?
it takes time for the block to heat up and for the heat to reach the thermometer
What is density?
A substance’s mass per unit volume
What experiment is this related to?
calculating density
what is the equation for density?
mass / volume
What is the resolution of the balance in this experiment?
0.1g
How could you get errors when using a eureka can in the calculating density experiment?
Water may spill if the object is dropped in too quickly
There may already be water in the measuring cylinder
Water may not be exactly at the level of the spout
What experiment does this relate to?
Force and acceleration
In the Acceleration experiment, what does the data logger and light gate do?
measures velocity or acceleration
What are the expected results of the acceleration experiment?
More force = more acceleration
Less force = less acceleration
What is one error that may occur in the acceleration experiment?
friction slowing the trolley
the trolley doesnt travel in a straight line
the masses hit the floor and stop pulling the string
Note 
Flashcards (40)