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WorksheetsBasic Science Grade 8
Total questions: 20
Worksheet time: 40mins
Calculate the force in Newton's, of a car of mass 20kg accelerating at 2ms².
0.1
10.0
18.0
22.0
40.0
Calculate the work done in joules if a horizontal push of 15N moves a box horizontally through a distance of 5m.
0.033
30.00
75.0
960
9600
The energy possessed by a stretched rubber is ______________.
electrical
heat
light
kinetic
potential
The washing or blowing away of soil by water or wind is known as _______
deforestation
depletion
desertification
erosion
vegetation
The liquid waste consisting of faeces , urine and water is called________.
effluent
garbage
refuse
sewage
waste.
which of the following is not a characteristic of living things
excretion
expansion
feeding
movement
respiration
The following are abiotic factors except____
light
pest
rainfall
temperature
water.
Factors that affect growth include the following except_____
disease
exercise
food
heredity
skill.
A substance which consists of one kind of matter is called a/an ______
atom
chemical
compound
element
mixture
Lever are supported at a point know as _________
bar
. effort
fulcrum
load
support
Matter exists in three state namely______
atom, gas, and liquid.
electrons, protons and neutrons.
liquids, gases and solid
particles, protons and neutrons
Solid, water and gas.
A force of 16N moves a load through a distance of 20m. Calculate the work done?
0.8J
4.0 J
36.0J
160.0J
320.0 J
Which of the following is not a flowing plant?
fern
flamboyant
hibiscus
ixora
pride of Barbados
The human male sex cell is called ___________
ovum
penis
scrotum
Sperm
testis.
Lack of vitamin B in the body causes the following except ________
abdominal pain
anaemia
beriberi
general weakness
rickets.
Which of the following must be present for rusting to occur?
water only.
water and carbon dioxide
water and hydrogen
water and nitrogen
water and oxygen.
A substance that does not allow light to pass through it is said to be ______
dark
opaque.
plane
translucent
transparent
The ability to do work is known as __________
density
energy
force.
mass
power.
A substance containing two or more substances physically combined together is referred to as a/an________
.compound
element
metal
mineral
mixture.
The stomach is part of the ___________ system
circulatory
digestive
endocrine
nervous
respiratory.
