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WorksheetsTHIRD QUARTER TEST IN SCIENCE
Total questions: 40
Worksheet time: 24mins
Which of the following is true about friction?
Friction is not present in a smooth surface
Friction slows down a moving object
Smooth surface has more friction
Objects move slowly on a rough surface
You rolled a marble on a very smooth surface. Without friction, what might happen to the marble?
It will stop immediately.
It will maintain its speed and suddenly stop.
It will move either to the right or left side and stop
It will continuously move until it strikes another object.
You have noticed that your door hinges create a squeaky sound and hard to open. After applying some lubricants on it, the squeaky sound disappeared and made it easy to be opened. How do lubricants affect friction?
Lubricants decrease friction and causes objects to move faster.
Lubricants has no effect on the movement of objects.
Lubricants increase friction and causes objects to move faster.
Lubricants slows down the movement of objects.
When you rolled your rubber ball on the grassy surface of the ground, it suddenly stops. How does friction affect the motion of the ball?
Friction affects the ability of the ball to take more rolling.
Friction decreases the time of the ball to take farther distance.
Direction of the ball to change its direction.
Friction slows down the rolling of the ball and prevents the ball to move farther.
A boy who weighs 35 kilos jumps higher than another boy who weighs 50 kilograms. How does gravity affect the jumps?
The heavier the object, the lesser gravity.
The lighter the object, the lesser gravity.
The stronger the gravity, the higher the jump.
Gravity does not affect how high one can jump.
A car travels faster when going down than in going up? Why?
Gravity pulls the car.
It is being pushed by the wind.
It is being pulled by the weight of the car.
It is moving against gravity.
A metal ball and a sheet of paper are dropped at the same time from the same height. What will happen when there is no air resistance?
The metal ball will land first.
The metal ball will float slowly through the air.
The metal ball and the paper will land at the same time.
The paper will land earlier than the metal ball.
A car and a truck are climbing the slope of a hill. Which of the two vehicles will reach the top faster? Why?
The car because it has smaller engine than the truck.
The truck because it has bigger fuel tank than the car.
The car because it is smaller and lighter than the truck and has lesser gravity.
The truck because it is bigger and heavier than the car and has more gravity.
Your kite flies up in the air and when the wind stops blowing, it goes down. Why?
Gravity pulls the kite down.
The wind pulls the kite down to the ground
There is no air around, so the kite goes down.
The force of gravity flies the kite up and moves it down.
If a sheet of paper is burned, what energy is given off which we see as a flame?
Which energy transformation occurs in an electric iron?
heat to light
heat to electricity
light to heat
electricity to heat
When we rub two pieces of wood together, it can produce heat and later turn into another form of energy. What energy transformation happened?
light to heat energy
heat to light energy
heat to sound energy
heat to electrical energy
The boy and girl scouts went camping at Camp John Hay. They gathered dried twigs and branches of trees which they burned for their bonfire to keep their bodies warm throughout the night, what energy transformation took place?
chemical energy to heat energy
chemical energy to mechanical energy
electrical energy to heat energy
heat energy to sound energy
The food that we eat has stored energy which is used in doing our work every day. What energy transformation has taken place in this situation?
chemical to heat energy
chemical to heat to sound energy
chemical to heat to electrical energy
chemical to mechanical to heat energy
Mother uses a washing machine in washing your blankets. What energy transformation is shown in the use of washing machine?
electrical to mechanical
chemical to mechanical
electrical to wind
electrical to chemical
What transformation of energy happens when the boiling water in the kettle whistles?
electrical to heat energy
mechanical to sound
heat to sound energy
sound to heat energy
Energy can be converted from one form to another. Which of the following represents the energy transformation when a match is struck?
chemical energy-light energy+ heat energy
kinetic energy-heat energy+ light energy
kinetic energy - light energy +heat energy
potential energy- kinetic energy+ sound energy
A boy is playing with a skateboard. In which surface will it travel the fastest?
the carpet
the rough floor
the polished floor
sandy ground
Our electrical appliances transform electrical energy into other forms. When you use a bread toaster, electrical energy is changed to _____________ and ____________ .
heat and chemical
light and heat
heat and electrical
light and chemical
After using your appliances for few minutes, the electrical energy is transformed into what kind of energy?
heat energy
mechanical
light energy
sound energy
This simple machine is used in a variety of ways to lift loads, apply forces, and to transmit power. An example is when you want to move a big rock using a crowbar.
Lever
Pulley
Screw
Wedge
Why are teeth examples of wedges?
They can cut objects
They can lift objects with less force.
They can pull down objects with less force
They have fulcrum, force arms and work arms.
Why is it easy to slip when there is water on a smooth surface?
The friction between your feet and the floor has no effect on your movement.
The friction between your feet and the floor is increased by the water.
The water increases the friction between your feet and the floor.
The water is a lubricant and reduces the friction between your feet and the floor.
Which of the following helps in reducing friction?
cloth, clay, rubber
pebbles, rocks, mud
gravel, sand, soil
lubricants, rollers, wheels, and bearings
Two balls were rolled at the same time on different surfaces with same force. Ball A rolls slowly on a rough surface and then eventually stopped while Ball B rolls on a smooth surface rolled faster until it reached another object then slowly stopped. What do the statements imply?
The balls have same speed even if the surface differ.
Smooth surfaces produce less friction than rough surfaces.
Smooth surfaces produce more friction than rough surfaces.
The surface of an object has no effect on the movement of object.
A lighted candle uses chemical energy which produces light energy, and at the same time it can produce what kind of energy?
chemical
electricity
heat
sound
Father wants to dig a hole in the backyard to plant pine tree seedlings. What simple machine will he use?
jack screw
shovel
pulley
Wheelbarrow
What energy transformation takes place when we turn on the television which uses electrical energy?
electrical to sound
electrical to heat and chemical
electrical to heat and sound
electrical to light, sound, and heat
Loading and unloading big objects in ships or trucks is made easy when workers use it because of its sloping and flat surface. What simple machine is used?
Inclined plane
pulley
shovel
Wheelbarrow
Which simple machine retains or holds things together like in hanging your photo frames on the wall?
Lever
Pulley
Screw
Wedge
The carpenter wants to remove the nails out from the wood they used for scaffolding. What simple machine is appropriate for the activity?
hammer
shovel
pulley
Wheelbarrow
The following objects use wheel and axle except one. Which is it?
knife
pushcart
washing machine
windmill
What will you use to transfer a heavy load to a higher place?
inclined plane and pulley
screw and wedge
lever and wedge
screw and wheel & axle
Which example shows chemical to heat to mechanical to light energy transformation?
In using doorbells and buzzers to call the attention of people inside the house.
When we burn a sheet of paper, energy is given off which we see as a flame.
When we use our flat iron to make our school uniform presentable.
When heat is released from fuel and boils the water to make steam, it turns the turbine which turns the generator to produce electricity.
Along the way, father had a flat tire. He must change it right away. What simple machine will he use?
inclined plane
shovel
jack screw
Wheelbarrow
A construction worker who works on the fifth floor is ready to apply the paint on the walls. What simple machine will he use to bring his painting materials on the fifth floor?
jack screw
shovel
pulley
Wheelbarrow
Which is an example of someone using a wedge to do work?
A banker counts money
A boy runs across a football field
A girl eating her sandwich
A mother pushes a stroller up a ramp into a building
We can hear the voice of the person whom we call through our cellphones because the speaker of the phone on the other end changes electrical/electromagnetic waves back into what form of energy?
electrical energy
light energy
heat energy
sound energy
Why is it difficult to climb up the mountain rather than to go down the mountain?
You go with gravity.
You move upward.
You are against gravity.
You move downward
In the early years, people fetch water from deep wells. What simple machine was used for raising water buckets from wells?
Pulley
Wedge
Screw
Wheel and Axle
