WorksheetsP4 Revision for SA2
Total questions: 40
Worksheet time: 20mins
The two poles of a magnet are called ...
East and West
North and North
North and South
South and South
What is a temporary magnet?
a magnet that lasts forever
a magnet with a strong force
material that has been magnetized but cannot hold its magnetism for long
any magnet that attracts metals
What happens when two North Poles are placed together?
they repel each other because they are the same poles
they attract each other because they are the same poles
a South Pole is created
an explosion
Which ways to increase the magnetism or strength of a magnet in the stroking method?
use more batteries
have more coils of wire
use two direction of stroking
apply more strokes
Which of the following actions make a magnet become demagnetized or get weaker (lose its strength as a magnet to attract magnetic objects)?
Heating the magnet.
Hitting the magnet with a non-magnetic object.
Dropping the magnet from a height.
Coiling wires around it and running an electric current through the wire.
Which of the following will NOT increase the strength of an electromagnet?
increasing the number of coils around the nail
increasing the number of batteries
making the rod bigger
using a stronger magnet
Electromagnets are ___________________.
permanent
instant
temporary
stable
Object that gives off heat is called _______________ of heat.
sources
places
things
Things get colder = ____________ heat
loses
gains
Solid, liquid and gas ___________ when it gains heat.
contract
expand
A metal spoon is used to stir hot chocolate in a ceramic mug. Which statement describes the direction of heat transfer that occurs?
from the spoon to the mug
from the mug to the spoon
from the spoon to the hot chocolate
from the hot chocolate to the spoon
A student took an empty bowl, placed it in an oven, and heated it. She then added water to the hot bowl and dropped in an ice cube. Which is the correct direction of heat flow in the bowl of water resulting in the melting of the ice cube?
ice cube → water → bowl
ice cube → bowl → water
bowl → ice cube → water
bowl → water → ice cube
The tool used to measure temperature is called a/an
insulator
conductor
thermometer
radiation
_____?_____ materials allow light waves to pass through easily.
Opaque
Transparent
Translucent
A mirror is ____________.
transparent
translucent
opaque
Which of the following is a natural source of light?
light bulb
fluorescent light
firefly
flashlight
A process by which animals use oxygen and food to make energy and carbon dioxide
Interactions
Respiration
Function
Organ
What system brings oxygen into the body and removes carbon dioxide from the body?
respiratory system
central nervous system
skeletal system
What system breaks our food down so that our body can use it for energy?
respiratory system
circulatory system
digestive system
True or False: Babies have more bones than adults?
True
False
Which system moves body parts?
muscular
skeletal
digestive
respiratory
Which system supports the body and protects organs?
skeletal
muscular
respiratory
digestive
The picture shows ..........
Where does digestion begin?
Our teeth
Our stomach
The esophogus
Small intestines
Which one is the correct order of digestion?
esophagus, mouth, stomach, large intestine, small intestine
esophagus, stomach, teeth, small intestine, large intestine
mouth, esophagus, stomach, small intestine, large intestine
Vascular tissue (tubes) responsible for the transportation of glucose or food down and around in a plant.
Transpiration
Xylem
Phloem
Root Hairs
How does water get transported in the plant?
leave -> roots -> stem
roots -> stem -> leaves
root hairs -> leaves -> veins
stem -> roots
Pores under leaves
that allow for transpiration
and gas exchange
Xylem
Stomata
Phloem
Transpiration
Photosynthesis is _______________________.
how plants use sunlight to produce food
how plants release water to the air
how plants use sugars and oxygen to produce energy to grow
What is the percentage composition of nitrogen in air?
78%
75%
86%
___________________ gas is used to extinguish fire.
Carbon dioxide
Helium
Oxygen
How many percent of oxygen is present in the air
20%
21%
78%
50%
When water in the flask was heated, the water level rose because ______________.
the water gained heat and expanded
the water lost heat and expanded
the water gained heat and contracted
the water lost heat and contracted
A bottle of air is connected to a balloon. When the bottle is placed in cold water, ______________.
the air in the balloon gained heat and the balloon expanded
the air in the balloon lost heat and the balloon expanded
the air in the balloon gained heat and the balloon contracted
the air in the balloon lost heat and the balloon contracted
When the metal ball is placed in fire, ______________.
the metal ball gained heat and expanded
the metal ball gained heat and contracted
the metal ball lost heat and contracted
the metal ball lost heat and expanded
Which statement is correct?
Block P gained heat and expanded.
Block P gained heat and contracted.
Block P lost heat and expanded.
Block P lost heat and contracted.
