Waves - Lenses Review (S8P4g)

Waves - Lenses/Characteristics of Waves Review (S8P4g)

By Sierra Lawhorne

​Pause

Review the Lenses Mirrors and Notes in your study guide, then continue through the slides.

Some text here about the topic of discussion

Multiple Choice

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

Multiple Choice

Which of the following statements is false?

• A convex lens refracts light.

• A concave lens refracts light.

• We see objects because they absorb visible light waves.

• We see objects because they reflect visible light waves.

Multiple Choice

3. Which of the following correctly shows what happens to light when it passes through a convex lens?

• 1

• 2

• 3

• 4

Multiple Choice

This lens is an example of what type of lens?

• concave

• convex

• refracting

• oval

Multiple Choice

This lens is an example of what type of lens?

• concave

• convex

• hourglass

• refracting

Multiple Choice

The lens pictured is exhibiting _______ behavior and is ______ in shape.

• converging, convex

• converging, concave

• diverging, convex

• diverging, concave

Multiple Choice

The lens pictured is exhibiting _______ behavior and is ______ in shape.

• converging, convex

• converging, concave

• diverging, convex

• diverging, concave

Multiple Select

Classify the image produced by the projector lens. Check two.

• real

• virtual

• larger than original

• smaller than original

The next slides will review the relationship between amplitude, frequency, wavelength, and energy.

Some text here about the topic of discussion

Poll

You can tell a lot about a wave by looking at its parts.

The amplitude of a wave is the amount of energy carried by a wave. In a transverse wave, the amplitude is the height of the wave.

Wavelength is the distance between one point on a wave and the nearest point just like it. In a transverse wave, the wavelength is the distance from crest to crest or trough to trough.

Frequency is the number of waves that pass a given point in one second.

• I don't get it.

• GOT IT!

Multiple Choice

If a sound wave has a high pitch, it has a ___.

• high frequency

• low frequency

Multiple Choice

Which wave has a higher frequency per second?

• blue wave

• red wave

Multiple Choice

The number of wavelengths that pass by a point each second is called ...

• wavelength

• pitch

• frequency

Multiple Choice

A low frequency has a ........... pitch.

• low

• high

Multiple Choice

The high pitch sound is

Multiple Choice

How High or Low a sound is

• Volume
• Amplitude
• Pitch
• Vibrate

Multiple Choice

Diagram shows 3 types of sound waves generated from speaker. Which of the following statements is true?

• P has a higher pitch than Q

• Q has a higher pitch than R

• R has the highest pitch

• P, Q and R have the same pitch

Multiple Choice

What is changed in the second picture?

• Someone is talking louder in picture 2

• Someone is talking softer in picture 2

• Someone is talking lower pitch in picture 2

• Someone is talking higher pitch in picture 2

Multiple Choice

Which of the following determines the pitch of a sound wave?

• Frequency

• Amplitude

• Reflection

• Absorption

Multiple Choice

Volume (Loudness) tells you if a sound is:

• wavy or straight

• deep or wide

• low or high

• loud or soft

Multiple Choice

A sound with a _________ frequency will have a _________ pitch.

• lower, higher

• higher, loud

• higher. lower

• lower, lower

Multiple Choice

The loudest sound is

Multiple Choice

A sound with a tall amplitude will be...

• quiet

• loud

Multiple Choice

How does this waveform change?

• low pitch - high pitch - low pitch

• high pitch - low pitch - high pitch

• low pitch - high volume - high pitch

Multiple Choice

How does increasing the amplitude of a sound wave affect the sound?

• it makes the sound louder
• it makes the sound travel faster
• it increases the wavelength of the sound
• it increases the frequency of the sound

Multiple Choice

The distance between the resting point and a crest or trough

• acoustics

• pitch

• amplitude

• volume

Multiple Select

Classify the image formed in the magnifying glass.

• real

• virtual

• larger than original

• smaller than original

Multiple Choice

Which wave has a longer wavelength?

• A

• B

Multiple Choice

Classify the image formed in this scenario.

• real, inverted, larger than original

• real, inverted, smaller than original

• virtual, upright, larger than original

• virtual, upright, smaller than original

Multiple Choice

Which wave has a shorter wavelength?

• A

• B

Multiple Choice

A person standing in front of a lens creates an image that is both smaller than the original and closer to the lens. Classify the image formed in this scenario.

• real, inverted

• real, upright

• virtual, inverted

• virtual, upright

Multiple Choice

The __________ of a wave is the distance between one point on a wave and the nearest point just like it. In a transverse wave, this is the is the distance from crest to crest or trough to trough.

• amplitude

• wavelength

• frequency

• baseline

Multiple Choice

A converging lens is also known as a ____ lens.

• convex
• concave
• double
• refracted

Multiple Choice

Which wave has a higher frequency?

• A

• B

Multiple Choice

What does the word "diverging" mean?

• to spread apart
• to come together
• parallel
• perpendicular

Multiple Choice

Which wave has a lower frequency?

• A

• B

Multiple Choice

A diverging lens is also known as a ____lens.

• refracted
• diffracted
• convex
• concave

Multiple Choice

The __________ of a wave is the number of waves that pass a given point in one second.

• amplitude

• wavelength

• frequency

• period

Multiple Choice

___ is when light travels through a material and bends.

• Diffraction
• Dispersion
• Mirage
• Refraction

Multiple Choice

True or False: Waves A and B have the same amplitude.

• True

• False

Multiple Choice

The point where the rays meet is known as....

• Fire
• the focal point
• refraction
• Plane of the lens

Multiple Choice

Which wave has a more amplitude?

• A

• B

Multiple Choice

This image is.....

• inverted and smaller

• inverted and larger

• not inverted and smaller

• not inverted and larger

Multiple Choice

Which wave has a less amplitude?

• A

• B

Multiple Choice

This image is...

• Inverted and smaller
• inverted and bigger
• not inverted and smaller
• not inverted and bigger

Multiple Choice

The _______________ of a wave is the amount of energy carried by a wave. In a transverse wave, the this is the height of the wave (or the distance between the baseline and the crest or trough).

• amplitude

• wavelength

• frequency

• baseline

Multiple Choice

Which describes a convex lens?

• triangular in shape
• more transparent in the middle
• thicker on the edges than in the middle
• thicker in the middle than on the edges

Multiple Choice

True or False: Both waves A and B have the same wavelength.

• True

• False

Multiple Choice

Is a convex lens thicker or thinner in the middle?

• Thicker 
• Thinner 

Multiple Choice

True or False: Both waves A and B have the same frequency.

• True

• False

Multiple Choice

What type of lens do humans have in their eyes? 

• Concave Lens 
• Convex Lens 

Multiple Choice

Is a concave lens thicker or thinner in the middle? 

• Thicker 
• Thinner 

Multiple Choice

______ is a lens that is thicker on its edges and makes an object appear smaller? (S8P4g)

• mirror
• convex lens
• concave lens
• prism

Multiple Choice

Why does light refract when it encounters the glass in a lens?

• because it speeds up, which causes it to bend

• because it slows down, which causes it to bend

• because it hits a dense medium, which causes it to bounce off

• because it gets absorbed, which causes it to lessen in intensity

Multiple Choice

_____ lenses refract light rays in toward a central point. When this lens is held close to your eye, the image is magnified and right side up.

• Concave

• Convex

• Prismatic

• Refractive

Multiple Choice

Which image CORRECTLY shows how light behaves when it travels from air through glass?

Multiple Choice

A ____ lens is sometimes called a converging lens because it_____.

• convex; makes parallel light rays curve outward or diverge

• concave; makes parallel light rays travel at a faster speed than before they encountered the lens

• convex, makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.

• concave; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lend known as the focal point.

Multiple Choice

A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?

• A

• B

• A and B

• neither A or B

Multiple Choice

What type of image is formed?

• virtual and inverted

• virtual and upright

• real and upright

• real and inverted