WorksheetsSCIENCE 6 Quarter 3 Reviewer
Total questions: 60
Worksheet time: 30mins
Which forms of energy are/are produced by a candle?
Heat
Electrical
Light
Sound
Which of the following are forms of energy?
Heat
Light
Shadow
Atom
Electrical
How can a worker move a large rock easily? I. The worker applies a larger effort. II. The small stone is placed nearer to the large rock. III. The small stone is replaced by another stone of a smaller size.
III only
I and II only
II and III only
I, II and III
A man tries to push a big box away, but he cannot move it. Of the following forces, which causes this to happen? I. Gravitational force II. Electrostatic force III. Frictional Force
I and II only
I and III only
II and III only
I, II and III only
What is the direction towards which objects on Earth are pulled by the Earth?
Back
Center
Front
Side
Which type of pulley doubles your effort but does not change the direction of your force?
Fixed Pulley
Movable Pulley
Block and Tackle Pulley
Both Fixed and Movable Pulley
Which energy transformation occurs in an electric iron?
Electricity to Heat
Heat to Electricity
Heat to Light
Light to Heat
Which of the following keeps all objects on the ground?
Acceleration
Friction
Gravity
Inertia
Which household device uses the principle of the wheel and axle?
Doorknob
Hammer
Knife
Screwdriver
Which form of energy is stored in medicines?
Chemical energy
Electrical energy
Light energy
Sound energy
Which simple machine is used in a variety of ways to lift loads, apply forces, and transmit power?
Lever
Pulley
Screw
Wedge
When can we say that friction on a floor is greater?
If the floor is wet.
If the floor is tiled.
If the floor is rough.
If the floor is smooth.
Which force causes a rolling ball to stop after a few seconds?
Friction
Gravity
Magnetic
Motion
Which of the following statements about friction is TRUE?
Friction opposes the motion of objects.
Friction occurs between non-rubbing surfaces.
Friction causes moving objects to move faster.
Friction acts in a direction like the direction of an object's motion.
When we turn on the television, electrical energy changes into light and ____.
Heat and Chemical
Heat and Light
Heat and Sound
Light and Sound
If you use some appliances, you see that after a few minutes, electrical energy is always produced ___.
Heat Energy
Light Energy
Mechanical
Sound Energy
Rubbing two pieces of wood together can produce heat and later turn into another form of energy.
Electrical Energy
Heat Energy
Light Energy
Sound Energy
Which energy transformation occurs in an electric iron?
Electricity to Heat
Heat to Electricity
Heat to Light
Light to Heat
The energy produced by a vibrating object is _____.
Electrical Energy
Heat Energy
Light Energy
Sound Energy
Why do drivers drive their cars slowly during rainy days?
Drivers drive slowly because the windshield is blurred.
Drivers drive slowly because they are afraid of the rain.
Drivers drive slowly because the road is wet so there is less friction.
Drivers drive slowly because the road is wet so there is more friction.
Which is NOT a way of reducing friction?
Applying lubricant
Putting spikes on tires
Making the floor smooth.
Putting grease on bicycle gears.
Why is it difficult to move heavy objects on a rough surface?
Because the rough surface is slippery.
Because there is no friction on a rough surface.
Because there is less friction on a rough surface.
Because there is greater friction on a rough surface
A ball rolled after being kicked and slowed down until it stopped. Which of the following forces caused the ball to slow down?
Electrical
Friction
Gravity
Magnetic
In the earliest time this simple machine was used for raising weights or water buckets from wells.
Pulley
Screw
Wedge
Wheel and Axle
If we burn a sheet of paper, energy is given off which we see as a flame or describe as a _____.
Electrical Energy
Heat Energy
Light Energy
Sound Energy
To jump, what force do we need to overcome?
Friction
Gravity
Mass
Wind
Many appliances you use every day change electrical energy into other forms. When you use a toaster to toast bread, electrical energy is changed to _____ and _____.
Heat and Light
Heat and Nuclear
Heat and Sound
Light and Sound
Who among the four children shows the proper way of handling simple machines?
Xavier uses simple machines with exposed wires.
Teody is always sure that any tool is in good condition before using it.
Haydee plays with her friends in a place where pulleys are lifting heavy loads.
After using simple machines like scissors, cutters, and knives, Irish leaves those on stairways.
Which is the correct way of handling simple machines?
When carrying sharp and pointed tools, position the pointed edge upward.
When carrying sharp and pointed tools, position the pointed edge sideward.
When carrying sharp and pointed tools, position the pointed edge downward.
When carrying sharp and pointed tools, position the pointed edge to your stomach.
In using doorbells and buzzers, electrical energy is transformed to _____,
Chemical Energy
Electrical Energy
Heat Energy
Sound Energy
When you light a lamp or candle, the chemical energy of the lamp is changed into light energy, and at the same time, it can produce _____.
Chemical
Electricity
Heat
Sound
When we talk on cellular phones, the speaker of the phone on the other end changes the electrical energy/ electromagnetic waves back into_____.
Electrical Energy
Heat Energy
Light Energy
Sound Energy
Why do you need to put rollers under the cabinets when you want to move them?
To apply more force.
To stop the movement of the cabinet.
To slow down the movement of the cabinet.
To minimize friction through the small surface of contact of the rollers.
Which simple machine keeps or holds things together?
Lever
Pulley
Screw
Wedge
What simple machine is shown in the picture?
Lever
Pulley
Screw
Wedge
Will it be easier for a person to push a table on a carpeted floor than on a tiled floor?
No, because the carpeted floor is rough, so friction is lesser.
No, because the carpeted floor is rough, so friction is greater.
Yes, because the carpeted floor is smooth, friction is lesser.
Yes, because the carpeted floor is smooth, friction is greater.
Maria used her cell phone to call her mother. After a few minutes, she felt the phone getting warm. Which diagram correctly shows the energy transformation that took place?
chemical light sound
chemical light and sound
chemical electrical and heat
chemical electrical sound and heat
The spiral metal rod in a bottle opener is an example of which simple machine?
Lever
Pulley
Screw
Wedge
What form of energy is produced by plucking the strings of a guitar?
Electrical Energy
Heat Energy
Light Energy
Sound Energy
How do you describe the gravity that an object on Earth experiences if its mass is greater?
Farther
Greater
Lesser
Smaller
When heat is released from fuel and boiling the water makes steam, it turns the turbine which turns the generator. This will produce _____.
Electrical Energy
Heat Energy
Light Energy
Sound Energy
Is friction between the floor and a cabinet present when a person pushes the cabinet?
Yes, because the bottom surface of the cabinet is in contact with the floor.
Yes, because the bottom surface of the cabinet does not rub against the floor.
No, because the bottom surface of the cabinet has nothing to do with the floor.
No, because the bottom surface of the cabinet is only rubbing against the floor.
When you plug a transistor radio into an electrical outlet and switch on the power button, automatically the electrical energy is turned to ____.
Heat Energy
Light Energy
Radiant Energy
Sound Energy
What simple machine is found in a pair of scissors?
Inclined Plane
Lever
Pulley
Wheel and Axle
Which form of energy is present when the television is turned on?
Electrical energy
Light
Sound energy
All of the above
Which type of pulley allows you to raise the flag?
Fixed Pulley
Movable Pulley
Block and Tackle Pulley
Both Fixed and Movable Pulley
Which of the following is NOT the function of the wheel and axle?
It multiplies force if the effort is applied at the wheel.
It multiplies force if the resistance is applied at the axle.
It multiplies distance or speed if the effort and resistance are applied the other way around.
It multiplies force if the resistance is applied to the wheel and the effort is applied at the axle.
What makes a ball thrown up into the air fall back to the ground?
Gravity causes the ball to fall.
The air pulls the ball to the ground.
Acceleration causes the ball to move faster.
The mass of the ball causes the ball to drop.
When food or liquids become hot, their molecules absorb energy, begin vibrating rapidly, and start to bounce off each other. As they collide, energy is produced and transferred, which warms and cooks our food. What form of energy is described?
Electrical Energy
Heat Energy
Light Energy
Sound Energy
The following show proper precautionary measures in using simple machines EXCEPT ____.
Use the right type of simple machine for the right job.
Simple machines that are sharp should be managed with care.
Secure pulleys properly and make sure that it is tightly tied to the support.
Expose knives, scissors, and other sharp objects in a place easily reached by children.
Which of the following has mechanical energy?
A flat iron
A dancing girl
A glass of water
A lighted bulb
Lever
Wheel and Axle
Pulley
Wedge
Lever
Wheel and Axle
Pulley
Wedge
Lever
Wheel and Axle
Pulley
Wedge
Lever
Inclined Plane
Pulley
Screw
Lever
Inclined Plane
Pulley
Screw
Lever
Inclined Plane
Wedge
Screw
Lever
Inclined Plane
Wedge
Screw
Lever
Inclined Plane
Wedge
Screw
Elevator
Lever
Inclined Plane
Pulley
Screw
