What is the SI unit for electric current?

Electricity and Circuits Worksheet

Quiz
•
Physics
•
7th Grade
•
Hard

Shuryati Mohd Shariff M
FREE Resource
100 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Volt
Ohm
Ampere
Watt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula correctly describes the relationship between current (I), potential difference (V), and resistance (R)?
V = IR
V = I + R
V = I/R
V = R/I
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT an effect of an electric current?
Chemical effect
Heating effect
Magnetic effect
Gravitational effect
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to state the SI unit when describing power in an electrical system?
It helps to compare different systems easily.
It makes the answer longer.
It is required only in some countries.
It is not important at all.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a precautionary measure to ensure the safe use of electricity in the home?
Overloading sockets
Using wet hands to touch switches
Keeping electrical appliances away from water
Ignoring damaged wires
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can changes made to an electrical system cause hazards?
By making the system more efficient
By increasing the risk of electric shock or fire
By reducing the current
By lowering the voltage
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of drawing and interpreting circuit diagrams?
To make the circuit look more complicated
To help set up and understand electrical circuits
To decorate the classroom
To avoid using real components
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