CSA #3 Physical Science

Nicole shined a BLUE light onto the following object. What colors did Nicole see?

• Nicole saw the leaf as black and the apple as blue.

• Nicole saw the leaf as blue and the apple as blue.

• Nicole saw the leaf as black and the apple as black.

• Nicole saw the leaf as blue and the apple as black.

When a sound wave hits a wall and bounces back, this phenomenon is known as:

• reflection

• refraction

• diffraction

• absorption

Refraction occurs when a wave...

• changes its speed in a new medium

• reflects off a surface

• interferes with another wave

• travels in a straight line

Why is it impossible for sound to be heard in outer space?

• There is no medium for sound waves to travel through

• Sound waves are absorbed by cosmic radiation

• The vacuum of space amplifies sound waves

• Sound waves are too weak to travel long distances

Which of the following scenarios involves light being absorbed?

• Reading a book under a lamp.

• Wearing a black t-shirt on a sunny day.

• Light passing through a glass door.

• Reflecting sunlight with a white sheet.

When light bends as it passes through a medium, this phenomenon is known as _____.

• absorption

• reflection

• transmission

• refraction

In which medium does light travel the slowest?

• empty space (vacuum)

• fresh water

• solids

• air (gas)

What is primarily carried by a wave as it propagates?

• velocity

• mass

• substance

• energy

Which statement is true about the speed of sound in different materials?

• Sound travels faster in air than in water.

• Sound waves move more quickly through gases than through liquids.

• The speed of sound is constant in all materials.

• The speed of sound depends on the medium through which it travels.

In which of these situations would mechanical waves slow down?

• from water to air

• from air to glass

• from water to ice

• from air to plastic