2nd Year: Viewing Our Solar System

Which of the following is not an example of a wave

• Sound

• Kinetic

• Water

• Ultraviolet

A wave is a vibration that transfers ______ but not matter

Label the following points

b

a

c

d

Crest

Trough

Amplitude

Wavelength

The speed of light in a vacuum is...

• 300,000,000,000 m/s

• 300,000,000 m/s

• 300 m/s

• 300,000 m/s

Reorder the following colours in terms of increasing wavelength starting with the smallest

• Red

• Orange

• Green

• Yellow

• Violet

What type of wave is light?

• Mechanical

• Electromagnetic

• Sound

• Seismic

Which of the following waves requires a medium to travel?

• Radio

• Sound

• Light

• Gamma

A ​ (a)   source of light is one which emits multiple ​​ (b)  

• polychromatic
• monochromatic
• wavelengths
• bright
• rays
• dim

Which of the following waves can travel through a vacuum?

• Sound

• Water

• Light

• Seismic

What is the primary difference between mechanical and electromagnetic waves?

• Mechanical waves require a medium, electromagnetic waves do not.

• Electromagnetic waves require a medium, mechanical waves do not.

• Both require a medium to travel.

• Neither requires a medium to travel.