Semester 2 Exam- Physical Science 2024

A ramp is an example of

• A lever
• A pulley
• A wheel and axle
• an inclined plane

How are the frequency and wavelength of the electromagnetic waves related?

• As frequency goes up wavelengths stay the same
• Frequency is greater than wavelength
• Wavelength is greater than frequency
• As frequency goes up, wavelength decreases

If you are sitting on a dock and count 10 waves passing in 8 seconds, what is the frequency of the waves?

• 10 Hz
• 80 Hz
• 1.25 Hz
• 0.8 Hz

What is 860,000 in scientific notation?

• 8.6 x 10⁵
• 86.0 x 10⁴
• 8.6 x 10⁻⁵
• 8.6 x 10⁻⁴

Convert 1.63 x 10⁻² to standard.

• 163
• 0.0163
• 0.00163
• 1.63

Amplitude measures the amount of ______ in a wave.

• wavelength
• energy
• hertz
• sound

What is measured in the section labeled #1?

• wavelength
• compression
• frequency
• amplitude

Which part of the wave is labeled #2?

• crest
• rarefaction
• amplitude
• trough

What is measured in the section labeled #3?

• crest
• rarefaction
• amplitude
• trough

Which part of the wave is labeled #4?

• trough
• refraction
• wavelength
• crest