What is the independent variable in the experiment involving the microwire?
How to Carry Out an Experiment to Investigate the Relationship Between Resistance and Wire Length

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Physics, Science, Engineering
•
10th Grade - University
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The temperature of the wire
The thickness of the wire
The length of the microwire
The material of the wire
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to open the switch before adjusting the crocodile clips?
To avoid electric shock
To prevent the wire from cooling down
To prevent the wire from overheating
To reset the circuit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a scatter graph with a line of best fit in this experiment?
To show the relationship between resistance and wire length
To measure the thickness of the wire
To calculate the potential difference
To determine the material of the wire
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you calculate the resistance per unit length of the wire?
By subtracting the length from the resistance
By adding the resistance and length
By multiplying the resistance by the length
By dividing the total resistance by the total length
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What conclusion can be drawn if the graph of resistance against length is a straight line through the origin?
Resistance is inversely proportional to length
Resistance decreases with increasing length
Resistance is proportional to length
Resistance is constant regardless of length
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