Required Practical

Question 1

What’s bav

Answer 1

Battery, ammiter, voltmeter,

Question 2

Find how current varies with potential differences

Answer 2

Need BAV a variable resistor and the components your testing. First vairy the resistance of your variable resistor. Then record current value from the ammeter and record the potential difference value from the voltmeter reverse the connection of your component. Repeat with negative diode, resistor, etc. Then plot IV graph

Question 3

How resistance of a wire changes with length

Answer 3

Need BAV, wire being tested, ruler and crocodile clips. Vary the length of the wire by moving the crocodile clips. Record current value from ammeter record potential difference value from voltmeter

Question 4

How do combinations of resistor affect resistance?

Answer 4

Need BAV plus resistor. Record current value for ammeter record. Potential difference value from voltmeter add resistor in series and repeat add in parallel and repeat

Question 5

What does ME FACE stand for in terms of finding the mass of a irregular object

Answer 5

M(mass find the mass of the object you’re trying to find the density from using a balance) E(Eureka can this is a spout that is used to find the volume F(fill the Eureka can with water) A(at the object you’re measuring into the Eureka can) C(cylinder user measuring cylinder to measure the volume of water) E (equation use the equation for density to find the mass)