Year 9 Quizizz

In an activity, a student floats a toy boat in an aquarium. What causes the part of the boat's hull that is underwater to appear larger than the part just above the water line?

• Reflection

• Absorption

• Conduction

• Refraction

Students classify objects by the properties of reflection and refraction. Which is a list of objects that best reflect light?

• Prism, water, camera

• Water, cardboard, clear container

• Foil, shiny pan, mirror

• Mirror, wood, water

What happens when light strikes a dark, heavy object?

• Light is refracted

• The light moves quickly through the medium

• Light energy is absorbed

• Light does not strike dark objects

What is shown in the image below?

• The force needed to push a swing

• The path light takes when it is refracted

• The flow of an electrical current

• The path light takes when it is reflected

Light bends when it is 

• refracted
• reflected
• absorbed

number of waves that pass a fixed point in a given amount of time

• amplitude

• trough

• wavelength

• frequency

how loud or soft something is

• pitch

• waves

• frequency

• volume

the highest (top) part of a wave

• crest

• trough

• amplitude

• frequency

the lowest (bottom) part of a wave

• crest

• trough

• amplitude

• medium

the distance between two crests OR two troughs

• frequency

• amplitude

• wavelength

• volume