3/5/24, 2:14 PM
PTS Genap Y7 | Quizizz
Worksheets
Name
PTS Genap Y7
Class
Total questions: 25
Worksheet time: 50mins
Date
Instructor name: EKO PRASETYO
1.
Which is an example of a population?
a) all the species of animals in wIldlife reserve
b) all the animals and plants living in a Savana
c) all the edelweiss trees growing in a forest
d) all the plants in a desert over a period of
10 years
2.
Which of the following best describes ecology?
a) The study of how living things interact with
b) The study of cells
their environment
c) The study of evolution
3.
4.
5.
6.
d) The study of heredit
A group of rabbits living in a forest is an example of a:
a) Community
b) Ecosystem
c) Population
d) Biome
An animal's natural home, including its food and shelter, is its:
a) Niche
b) Habitat
c) Species
d) Population
In a food chain, which organism produces its own food from sunlight and inorganic materials?
a) Predator
b) Consumer
c) Decomposer
d) Producer
Which organism breaks down dead organisms and returns nutrients to the environment?
a) Decomposer
b) Consumer
c) Producer
d) Predator
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7.
8.
PTS Genap Y7 | Quizizz
If there are too many herbivores in an ecosystem and not enough producers, what might happen?
a) Shifting ecosystem equilibrium
b) The decomposers will benefit
c) The producers will grow faster
d) The herbivores will find new food sources
Decomposers are important because they :
a) Fix nitrogen from the atmospher
b) Compete with producers for resources
c) Prey on other organisms
d) Break down dead organisms and return
nutrients to the environment
9.
Which statement is FALSE about food chains?
a) They show the flow of energy in an
b) They can be connected to form food webs
ecosystem
c) mostly prime consumer is herbivore
10.
d) Producers are always plants
An increase in the number of producers in an ecosystem can potentially lead to an increase in the
population of:
11.
a) Both consumers and decomposers
b) Only consumers
c) Neither consumers nor decomposers
d) Only decomposers
Which of the following processes converts inorganic carbon to organic carbon?
a) Respiration
b) Photosynthesis
c) Feeding
d) Combustion
12.
Which food chain could be represented by the following pyramid of numbers?
a) Spinach --> human
b) Grass --> rabbits --> snakes
c) Algae --> fish --> eagle
d) Tree ---> caterpillars -->birds
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PTS Genap Y7 | Quizizz
13.
Which organism in the food web below is a primary and secondary consumer?
a) Aphid
b) Caterpillar
c) Grasshopper
d) Spider
14.
look at the picture
a) B
b) A
c) C
d) D
15.
In a particular community, a papaya tree provides food for caterpillars, and these caterpillars in turn
become food for a few birds.
Which of the pyramids above accurately represent the pyramid of numbers and pyramid of energy
for the food chain described?
a) Pyramid of numbers
S
P
Pyramid of energy
Pyramid of energy
R
Q
c) Pyramid of numbers
16.
b) Pyramid of numbers
d) Pyramid of numbers
Q
R
Pyramid of energy
Pyramid of energy
P
S
Which of the following is not a vector?
a) force
b) acceleration
c) time
d) velocity
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17.
PTS Genap Y7 | Quizizz
A car of mass 1000 kg is moving with an acceleration of 2 m s–2. Find the force the engine exerts
on the car
18.
a) 2000 N
b) 3000 N
c) 1500 N
d) 500 N
In which of the following cases is friction not a useful force?
a) A gymnast does a handstand on the practice
mat.
c) A baby crawls across the floor.
b) A hovercraft moves across land and sea on a
cushion of air.
d) A car speeds along a road.
19.
What is the resultant force on the block?
20.
21.
22.
a) 2 N to the right
b) 7 N to the left
c) 2 N to the left
d) There is no resultant force.
Which of the following is true of every object experiencing zero acceleration?
a) The object is at rest.
b) The object experiences zero resultant force.
c) The object is moving at constant velocity.
d) There are no forces acting on the object.
What are the forces that act on a stationary bus parked in a bus bay?
a) Gravitational force, contact force and friction
b) Contact force
c) Gravitational force and contact force
d) Gravitational force
Which of the following objects is accelerating?
a) A girl and a boy each pull a toy bear by one
b) A car of 500 kg is moving at a constant
of its arms in opposite directions, exerting a
velocity of 50 km h–1. It experiences an
force of 3 N each.
engine force of 5000 N.
c) A pendulum bob of weight 5 N hangs
d) A car brakes gradually along a rough road.
vertically downwards from a retort stand.
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23.
PTS Genap Y7 | Quizizz
Which statement is true about force effect?
*) Multiple correct answer
a) Force makes a moving body changes
b) Force makes a moving body decrease in
direction
c) Force makes a moving body increase in
speed
d) Force makes a rest body moves
speed
24.
The figure below shows the horizontal forces acting on a rest car.
Which one of the statements describes the motion of the car?
25.
a) It will have a constant speed.
b) It will be stationary.
c) It will be slowing down.
d) It will be speeding up.
Which object has the largest resultant force?
a)
b)
c)
d)
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