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WorksheetsScience Form 2 Chapter 7- Electricity and Magnesium
Total questions: 16
Worksheet time: 13mins
Example of a few daily activities that use energy:
(Choose more than 1 answer)
People use energy to run
Plants need energy from the Sun to continue living
Car need energy from fuel to move
The light from the bulb is produced by energy
When two objects of different materials are rubbed together, the electrons are transferred from one object to the other.
The object that gains electrons will be......
negatively charged
positively charged
When two objects of different materials are rubbed together, the electrons are transferred from one object to the other.
The object that loses electrons will be.....
negatively charged
positively charged
What's electrostatic forces
The attraction and repulsion between the electric charges
The object that has equal number of protons and electrons
an electric discharge.
deviced use to detect the existence of electric charges on an object
What's neutral
The object that has different number of protons and electrons
The object that has equal number of protons and electrons
an electric discharge.
deviced use to detect the existence of electric charges on an object
What's Electroscope
The object that has different number of protons and electrons
The object that has equal number of protons and electrons
an electric discharge.
a deviced use to detect the existence of electric charges on an object
What's lightning?
Happens as a result of the transfer of electric charges between our body and the door knob that has static electric charges
The object that has equal number of protons and electrons
An electric discharge.
A deviced use to detect the existence of electric charges on an object
There are two types of electrical charges
positive charges
negative charges
top charges
bottom charges
Energy cannot be created nor destroyed but it can exist in various forms
(Is this correct?)
Correct
Wrong
S.I unit for energy
joule (J)
square metre(m2)
henry(H)
degree Celsius (°C)
After the polythene rod rubbed with the woollen cloth.
Which will be negatively charges?
Woollen cloth
polythene rod
hand
non will be negatively charges
Object with __ of charges repel (push part) each other.
same type
different type
Object with __ of charges attract each other.
same type
different type
Lightning occurs
[occurs--berlaku 发生]
(choose more than 1 answers)
when the electrons that collect at the bottom of the cloud move to the positively charged areas of the cloud
when sparks jump between clouds and the surface of the Earth
when raining from a country to another country
when living things stand under tree
when students learning Science
and they keep playing games and reading novel
Who need energy?
all the living things
human
human and animals
Robot
Which is cathode ray tube?
