Rp Flashcards
(15 cards)
What does the specific heat capacity practical measure?
The amount of energy required to raise the temperature of 1 kg of a material by 1°C.
What equipment is used in the specific heat capacity practical?
A block of material, immersion heater, thermometer, power supply, and a joulemeter or ammeter/voltmeter/timer.
What is the key formula for specific heat capacity?
E = mcΔθ
What is tested in the thermal insulation practical?
The effectiveness of different materials in reducing heat loss.
How is the practical usually set up?
Boiling water is placed in a beaker, which is wrapped in different insulating materials. A lid may be added.
What is measured during the practical?
Temperature decrease over time.
What is investigated in the resistance practical?
How the length of a wire affects its resistance.
What equipment is used?
Wire, ruler, power supply, ammeter, voltmeter.
What formula is used to calculate resistance?
R = V/I
What is investigated in the I-V characteristics practical?
The relationship between current and potential difference for components.
Which components are tested?
Resistor, filament lamp, and diode.
What kind of graph is plotted?
Current (I) vs Voltage (V) for each component.
What is the aim of the density practical?
To determine the density of regular and irregular objects.
What equipment is used?
Balance, ruler (for volume of regular objects), displacement can (for irregular), and measuring cylinder.
What formula is used?
Density = Mass/Volume
