8K Quick Quiz

During a science fair, Aiden demonstrated that when he shone a flashlight through various shaped cutouts, the light always traveled in straight lines. Which of these statements about light did Aiden prove?

• Light travels in straight lines.

• Light is stopped when it meets a solid object.

• Light does not travel in straight lines.

• Light will only travel for about 2000 km before it stops.

During a science class, Sofia asked Lorena why we can see things. Which phrase best completes Lorena's response? We see things because:

• They are luminous.

• The Sun shines on them.

• Light from them enters our eyes.

• Light from our eyes shines on them.

During a sunny day at school, Ibrahim noticed that the playground had areas where the sunlight didn't reach. This happens because:

• Light will only travel a certain distance before it stops.

• A substance called 'darkness' collects behind some objects.

• Some objects do not give out light in all directions.

• Light cannot go through some objects, like the playground equipment.

During a science experiment, Haitam and Aiden observed a lightning storm. Haitam saw the lightning before Aiden heard the thunder. Which statement explains this observation?

• Sound travels faster than light.

• Light does not travel. It is either on or off.

• Light travels faster than sound.

• Light and sound travel at the same speed.

Emely, Benedicto, Alex, Ibrahim, and Francesca are observing different objects in their science class. They noticed that opaque objects can:

• Transmit and reflect light like a glass window.

• Transmit and absorb light like a clear water bottle.

• Reflect and absorb light like a wooden table.

• Only reflect light like a mirror.

Myles is conducting an experiment on light absorption. He wants to know which material will absorb the most light. Which should he choose?

• A white sheet of paper

• A sheet of clear glass

• A black piece of card

• An orange piece of card

During a science fair, Fernando and Sofia built a pinhole camera to demonstrate how it captures images. How is their pinhole camera similar to the human eye that Ibrahim observed in biology class?

• They both form an upside-down image.

• They both use a lens to focus light.

• They both convert light to electrical signals.

• They both take photographs.

During a science class, Emely learned that a certain part of the eye is responsible for converting light energy into electrical signals, which are then sent to the brain. Which part of the eye performs this function?

• The lens

• The pupil

• The optic nerve

• The retina

Lorena is looking at her reflection in a plane mirror. What type of mirror is she using?

• A flat mirror.

• A curved mirror.

• A shiny mirror.

• A mirror used in aeroplanes.

Anthony throws a ball against a wall at an angle of 30°. If the ball bounces back, how big will the angle of reflection be?

• 20°

• 30°

• 40°

• 60°