Question 1

Which of the following is a good conductor of electricity?

Accepted Answer

A. copper

Answer

C. cotton

Answer

B. cloth

Answer

D. plastic

Question 2

You want to have equal distribution of electricity in your house. Which of the following are you going to do?

Accepted Answer

C. Ask a qualified electrician to install series connection.

Answer

B. Ask a qualified electrician to install extension wires.

Answer

A. Ask a qualified electrician to install octopus wiring.

Answer

D. Ask a qualified electrician to install parallel connection.

Question 3

Which refers to a change in position with respect to a reference point?

Accepted Answer

B. Motion

Answer

A. distance

Answer

D. energy

Answer

C. meter

Question 4

What do you think is the reason why a speed of 10 km/h is required at school zones?

Accepted Answer

C. to keep the children safe from vehicular accidents

Answer

A. to save on fuel

Answer

D. to prevent vehicles from bumping into one another

Answer

B. to prevent damage to vehicles

Question 5

What happens to the current in a series if one bulb is removed?

Accepted Answer

D. stops

Answer

A. decreases

Answer

B. increases

Answer

C. remains the same

Question 6

How can we increase the strength of the magnetic field of an electromagnet?

Accepted Answer

A. add more copper wire to coil

Answer

D. put more paper clips to pick up

Answer

B. clip on the alligator clips

Answer

C. expose to more light

Question 7

Which material should we use to construct an electromagnet?

Accepted Answer

B. Use a silver spoon as core.

Answer

C. Use abaca rope as wire.

Answer

A. Use a black crayon as core.

Answer

D. Use yarn as wire.

Question 8

How can you increase the strength of an electromagnet?

Accepted Answer

B. Use a metal part of the screwdriver

Answer

C. Use a tempered glass as the core.

Answer

D. Use an expensive gel pen as core.

Answer

A. Use a long pencil as core.

Question 9

The relationship between the strength of an electromagnet and the number of coils is directly proportional. This means that _____.

Accepted Answer

A. As the number of coil increases, the strength of the electromagnet increases.

Answer

C. As the number of coil decreases, the strength of the electromagnet increases.

Answer

B. As the number of coil increases, the strength of the electromagnet is still the same.

Answer

D. As the number of coil increases, the strength of the electromagnet decreases.

Question 10

Which statement is true about electromagnet?

Accepted Answer

A. It is a magnet made when electrical charges move through a coil of wire wrapped around an iron core or center.

Answer

D. They are permanent magnets.

Answer

C. A magnet that can prevent an electric shock.

Answer

B. A device that produces electric current from energy stored from chemicals

Question 11

What happens to the current in a series if one bulb is removed?

Accepted Answer

D. stops

Answer

B. increases

Answer

C. remains the same

Answer

A. decreases

Question 12

Where does an electric current flow?

Accepted Answer

C. closed circuit D. busted bulb

Answer

A. open circuit

Answer

D. busted bulb

Answer

B. broken circuit

Question 13

What is the effect of changing the wire in a circuit from a straight short wire to a

longer coiled thick wire.?

Accepted Answer

B. The bulbs become brighter.

Answer

C. The bulbs become dimmer.

Answer

D. The bulbs stay at the same level of brightness.

Answer

A. Nothing has changed.

Question 14

Imagine a circuit with a 1.5 volts battery, a bulb and a similar circuit with 3 volts

battery and 2 bulbs. Which has the brighter glow?

Accepted Answer

D. The bulbs in both circuits are of similar brightness levels

Answer

A. The bulbs in both circuits will not lit.

Answer

C. The circuit with 3 volts battery and 2 bulbs.

Answer

B. The circuit with 1.5 volts battery and one bulb.

Question 15

Imagine a simple circuit with one 1.5 volts battery and a bulb. When the 1.5 volts

battery is replaced with a 3 volts battery, what will happen?

Accepted Answer

A. The bulb gets brighter.

Answer

B. The bulb gets dimmer.

Answer

D. The bulb stays at the same level of brightness.

Answer

C. Nothing has changed.

Question 16

Which is the material that does not allow light to pass through, instead it just reflects or absorbs light?

Accepted Answer

A. opaque

Answer

D. reflection

Answer

C. translucent

Answer

B. transparent

Question 17

Opaque materials do not transmit light at all. Which group of objects composed of opaque materials?

Accepted Answer

A. metal, wooden table, soap

Answer

D. glass center table, tree, book

Answer

C. glass, ceramic, plastic plate

Answer

B. lenses, plastic cover, book

Question 18

Transparent materials allow light to pass through. Which group of objects composed of transparent materials?

Accepted Answer

C. clear water, magnifying lens, eyeglasses

Answer

B. white sock, umbrella, plastic ball

Answer

D. colored cellophane, gelatin, tinted window

Answer

A. flower, plastic bottle, booth

Question 19

Which of the following produces heat?

Accepted Answer

D. rubbing one’s palms together

Answer

B. looking at someone

Answer

C. opening one’s mouth

Answer

A. looking at fire

Question 20

The following materials use conductors of heat and electricity to function EXCEPT one. Which is it?

Accepted Answer

A. lighted candle

Answer

B. lighted electric bulb

Answer

C. water heater

Answer

D. washing machine

Question 21

Anthony is an electrician in one company. In his province, he is required to use

rubbers and gloves when working. Why?

Accepted Answer

D. Rubber are electrical insulators that can keep away from electric shockwave.

Answer

C. Rubber materials allow electricity and heat to flow easily.

Answer

B. Gloves are considered as a thermal conductor

Answer

A. Rubber works as a good electrical conductor.

Question 22

Why is electrical wiring usually covered with layers of plastic?

Accepted Answer

A. to make it safe

Answer

D. to help electricity flow along the wire.

Answer

C. to make it strong

Answer

B. to make it look pretty

Question 23

Motion is defined as changed in position of an object. Which does NOT demonstrate

motion?

Accepted Answer

D. picture from on the wall

Answer

B. boy playing at the park

Answer

A. ball rolling on the floor

Answer

C. girl dancing on the stage

Question 24

A bus along a street travelled 150 kilometers in 3 hours. What is the average speed?

Accepted Answer

B. 50 km/h

Answer

D. 60 km/h

Answer

C. 40 km/h

Answer

A. 20 km/h

Question 25

Which object will you use to close the gap between the ends of the wires to make the bulb light?

Accepted Answer

D. metal spoon

Answer

A. plastic cup

Answer

C. rubber band

Answer

B. paper

Question 26

An electromagnet is surrounded by a coil of wire through which an electric current pass through. Which electromagnet can attract more pins?

Accepted Answer

https://uploads.quizalize.com/b212fde0-e0b3-49e6-b902-1030d5912505/question/c7e92f927f009e854f8aa56fd64076473913aca5.png

Answer

https://uploads.quizalize.com/b212fde0-e0b3-49e6-b902-1030d5912505/question/b6878c4397bbfb98764b7218ecf32c59b30d10c2.png

Answer

https://uploads.quizalize.com/b212fde0-e0b3-49e6-b902-1030d5912505/question/533091c2c6dc57171bab24268152d0fe44044424.png

Answer

https://uploads.quizalize.com/b212fde0-e0b3-49e6-b902-1030d5912505/question/7f77b233acdb8ff021a77060b039fa03d1689909.png

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