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WorksheetsRevision Capsule, Class 7th
Total questions: 15
Worksheet time: 1hrs 8mins
Name
Class
Date
1.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
2.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
3.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
4.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
5.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
6.
The handle of a frying pan is often coated in rubber because rubber provides...
a)
Heat insulation
b)
Heat conduction
c)
A low melting point
d)
A nonstick surface
7.
Is iron a conductor or insulator?
a)
Conductor
b)
Insulator
8.
A wave that requires a medium through which to travel
a)
mechanical wave
b)
chemical wave
c)
electromagnetic wave
d)
pitch
9.
The number of wavelengths that pass a point each second
a)
crest
b)
amplitude
c)
frequency
d)
pitch
10.
This circuit is .....?
a)
open
b)
parallel
c)
closed
d)
shows the flow of electricity
11.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of electrical current
c)
the pathway that electrical current flows
d)
to add more power to the circuit
12.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
13.
Which of the following can supply energy in an electric circuit?
a)
a conductor
b)
light bulb
c)
a wire
d)
a battery
14.
Why is electrical wire usually covered with a layer of plastic?
a)
To make it look pretty
b)
To help electricity flow along the wire.
c)
To make it safe from electric shock
d)
To add more energy
15.
Select the temperature in °C
a)
40°C
b)
100°C
c)
96°C
d)
36°C
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