THIRD QUARTER EXAMINATION IN SCIENCE

Electromagnet is used in appliances with a motor. Which of the following uses An electromagnet?

• toaster

• light bulb

• flat iron

• washing machine

Which of the following materials is best suited for blocking light?

• A. Glass

• B. Plastic

• C. Cardboard

• D. Aluminum foil

You want to keep your bedroom dark, but your room has large glass windows that let sunlight in, what type of curtains will you use to prevent light from passing through?

• A. Thin lace curtain

• B. Thin transparent curtain

• C. Thick dark-colored curtain

• D. Thick transparent curtain

Mang Toto is an experienced electrician at the school, ensuring that the electricity is functioning properly. What safety protective gear does Mang Toto wear while doing his work?

• A. They wear PPE's

• B. They wear raincoats

• C. They wear raincoats

• D. They wear beautiful clothes

What is the distance traveled if a car travels at a speed of 60 km/h for 2 hours?

• A) 120 km

• B) 180 km

• C) 240 km

• D) 300 km

Stained glass doors let light in but hide the objects behind them. Stained glass is classified as what type of material?

• A. Opaque

• B. Transparent

• C. Translucent

• D. Either opaque or transparent

Which statement BEST describes an electromagnet?

• It is a temporary magnet made when an electric field in the wire coil creates a magnetic field around a core.

• It is a permanent magnet made when an electric field in the wire coil creates a magnetic field around a core.

• It is a temporary magnet made when a magnetic field in the wire coil creates an electric field around a core.

• It is a permanent magnet made when a magnetic field in the wire coil creates an electric field around a core.

How can understanding the effects of heat and electricity on the human body be applied in a school setting?

• A. Following safety guidelines during school science experiments.

• B. Designing energy-efficient heating systems for school buildings.

• C. Educating students about the importance of thermal insulation in their homes.

• D. Using insulating materials to prevent heat loss in laboratory equipment.

Which of the following statements best describes the characteristics of good conductors of heat and electricity?

• A. They transfer heat and electricity slowly.

• B. They are poor insulators.

• C. They are good insulators.

• D. They transfer heat and electricity very quickly.

What can be used to categorize a material as a good conductor of heat and electricity?

• A. Observing their ability to transfer heat and electricity slowly.

• B. Examining their density and molecular structure.

• C. Checking their ability to transfer heat and electricity quickly.

• D. Evaluating their color and texture.