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Worksheets

8T1 SCI 1

Total questions: 31

Worksheet time: 17mins

Name
Class
Date
1.

SI unit of temperature is ____

a)

celsius

b)

fahrenheit

c)

kelvin

d)

ampere

2.

Luminous intensity is the intensity of______

a)

laser light

b)

UV light

c)

visible light

d)

IR light

3.

If one coulomb of charge is flowing in one minute, it is called ‘ampere’. 


a)
True
b)
False
4.

Amount of substance gives the number of particles present in a substance. 


a)
True
b)
False
5.

The number 4. 582 can be rounded off as 4. 58. 


a)
True
b)
False
6.

Temperature is a measure of total kinetic energy of the particles in a system. 


a)
True
b)
False
7.

Which one the following systems of unit is the British System of unit?


a)

CGS

b)

MKS

c)

FPS

d)

SI

8.

Temperature

a)

Measure of hotness or coldness

b)

Angle formed by the intersection of two planes


c)

Closeness to the Actual Value

d)

Closeness to two or more measurements 

9.

Precision

a)

Measure of hotness or coldness

b)

Angle formed by the intersection of two planes


c)

Closeness to the Actual Value

d)

Closeness to two or more measurements 

10.

Closeness of two or more measured values is called as ______


a)

accuracy

b)

precision

c)

error

d)

approximation

11.

Amount of substance is


a)

directly proportional to the number of atoms


b)

inversely proportional to the number of atoms


c)

directly proportional to the square of number of atoms


d)

inversely proportional to the square of number of atoms


12.

Angle formed at the top of a cone is an example for ‘plane angle’. 


a)
True
b)
False
13.

Which one of the following element name is not derived from planet?


a)

Plutonium

b)

Neptunium

c)

Uranium

d)

Mercury

14.

Symbol of mercury is


a)

Ag

b)

Hg

c)

Au

d)

Pb

15.

Pencil lead contains


a)

graphite

b)

diamond

c)

aluminium

d)

sulphur

16.

The property which allows the metals to be hammered into their sheets is ___________


a)

ductility

b)

malleability

c)

conductivity

d)

shining strength


17.

The non-metal which conducts electric current is


a)

carbon

b)

oxygen

c)

aluminium

d)

sulphur

18.

The symbol of tungsten is --------. (a)  


​

19.

1. The element which possesses the character of both metals and non metals are called ---------------.​ (a)  

​


20.

Boron

a)

As a fuel for ignition in rocket

b)

Making the filament of a bulb

c)

For making wires

d)

Sewing needle

21.

Copper

a)

As a fuel for ignition in rocket

b)

Making the filament of a bulb

c)

For making wires

d)

Sewing needle

22.

Iron

a)

As a fuel for ignition in rocket

b)

Making the filament of a bulb

c)

For making wires

d)

Sewing needle

23.

Element

a)

atoms of the same kind

b)

atoms of different kinds

c)

smallest unit of a substance

d)

building block of matter

24.

Molecule

a)

smallest unit of a substance

b)

atoms of different kinds

c)

atoms of the same kind

d)

building block of matter

25.

Atom

a)

smallest unit of a substance

b)

atoms of different kinds

c)

atoms of the same kind

d)

building block of matter

26.

What is the primary component of the Earth's atmosphere?

a)

Argon

b)

Oxygen

c)

Nitrogen

d)

Carbon Dioxide

27.

What is the boiling point of water at sea level?

a)

150°C

b)

50°C

c)

0°C

d)

100°C

28.

Which of the following is a noble gas?

a)

Oxygen

b)

Hydrogen

c)

Neon

d)

Carbon Dioxide

29.

What is the chemical formula for table salt?

a)

KCl

b)

CaCl2

c)

NaCl

d)

MgCl2

30.

What is the chemical symbol for gold?

a)

Pb

b)

Au

c)

Hg

d)

Ag

31.

What is the chemical symbol for gold?

a)

Pb

b)

Au

c)

Hg

d)

Ag