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WorksheetsSCIENCE Q3 REVIEWER
Total questions: 50
Worksheet time: 25mins
It is the force that pulls objects towards the ground.
(a)
An electrician climbs an electric post to fix a broken wire. What force stops him from sliding down?
(a)
The push or pull that can stop, start, or change the direction of a moving object.
(a)
A force that occurs when surfaces of objects touch each other.
(a)
Which of the following situations shows great friction?
rain showers
people skating
jeepney parks as the brake was stepped on
loose grip while holding a glass of water
What happens to the gravitational strength between two objects as the distance between them increases?
(a)
Gravity acts upon all objects in the Earth. Where is the direction of the gravitational force directed?
(a)
“All objects that go up, must come down”. Which force is responsible for this?
(a)
What type of surfaces has less friction?
(a)
A car is parked on a sloping road. Which force keeps it from sliding down?
(a)
It is the force present as the planets revolve around the sun.
(a)
The force keeps people from walking on the ground instead of floating in space.
(a)
What do you think will happen if you are moving towards gravity?
you will run much faster
you will walk much slower
nothing happens
you stopped moving
As the strings of the guitar are plucked, it vibrates. Which form of energy is produced?
(a)
The heat trapped beneath the surface of the ground.
(a)
The flowing water, the heat and light coming from the sun and the blowing wind can be used to generate what form of energy which can be used to power our appliances.
(a)
Salt is used to make our food tastier, which form of energy is used to produce dried salt?
(a)
Which form of energy is used to dry our wet clothes?
(a)
Which form of energy powers our appliances at home?
(a)
The sun, wind, flowing water, sea waves can be used to generate electricity. What kind of source of energy are they?
(a)
The end-product of energy transformations.
(a)
Which of the following practices conserves energy?
turning off the lights when not used
turning the tv on while playing phone games
turning the faucet on while brushing your teeth
turning the lights on during daytime
Batteries have chemical energy. What form of energy is produced when the radio is turned on?
(a)
What form of energy comes from a glowing heat source that radiates in all directions?
(a)
It is always produced when there is energy transformation.
(a)
The form of energy is produced by running machines
(a)
The energy transformation of a gasoline-powered motorcycle.
electric to mechanical
chemical to electrical to mechanical
electrical to sound
electrical to sound to light to heat
Which of the following has the following energy transformation: electrical to light to heat
blender
car
speaker
fluorescent light
Which of the following has an energy transformation like: electric to light to heat
motorcycle
electric lamp
electric stove
electric fan
Which of the following has this energy transformation: chemical to electric to light + sound + mechanical to heat
speaker
tv
cellphone
running man
Which of the following has this energy transformation: electrical to mechanical to sound to heat
blender
tv
cellphone
walking
Which of the following has this energy transformation: electrical to mechanical to heat?
electric fan
electric stove
electric heater
electric iron
Fill in the blank. Simple machines makes our work faster and (a) .
It is a simple machine with a rigid bar that is free to turn at a fixed movable part.
(a)
A simple machine with a rope, a wheel, and a groove that can be used to raise objects from the ground.
(a)
A simple machine with a pointed edge used to cut or slice objects
(a)
13. A simple machine with a flat surface positioned at a tilted angle in moving heavy objects.
(a)
What type of simple machine is a cutter?
(a)
What type of simple machine is a metal ramp?
(a)
What type of simple machine is a well?
(a)
What type of simple machine is a see saw?
(a)
Which of the following is both a lever and a wedge?
scissors
broom
tong
stairs
What class of lever is a wheel barrow?
(a)
Where should needles and pins be placed after using them?
anywhere
on the table
on the floor
in a box placed in the cabinet
Simple machines make our work faster and easier. What safety measure should we practice before using them?
Check and make sure that they are in good condition.
Keep them in drawers and cabinets.
When holding a sharp and pointed simple machine, you may hold them in any way you like.
Wash them after using.
Which of the following is a screw?
pliers
scissors
see saw
bulb
Why should simple machines like pulleys, levers and inclined plane be checked first before using them?
if they are the right type of simple machine.
if they are well- lubricated.
if they are still in good condition and avoid accidents to happen.
if they are newly bought.
Should children be allowed to use wedges by themselves?
Yes, if they want to.
Yes, so that they will know how to use them.
Yes, they may be allowed to use them as long as there is an adult supervision
Yes, they may be allowed to use them by themselves.
Which of the following has this energy transformation: mechanical to heat
running man
cooking food
tv on
speaker on
Chemical to (a) to light + sound to heat. What is the missing form of energy of the a tablet?
