sound of music
DESCRIPTION
Sound of Music. Learning check! #5. 1.Which lens would make the best magnifying glass ?. A. Diverging, long focal length. B. Converging, long focal length. C. Diverging short focal length. D. Converging, short focal length. 2.Real is positive means. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/1.jpg)
Sound of Music
Learning check!
#5
![Page 2: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/2.jpg)
1.Which lens would make the best magnifying
glass ?A. Diverging, long focal length
B. Converging, long focal length
C. Diverging short focal length
D. Converging, short focal length
![Page 3: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/3.jpg)
2.Real is positive means
A. Diverging lenses have negative focal lengths
B. Diverging lenses never produce real images
C. Converging lenses always produce real images
D. Converging lenses only produce real images from close up objects
![Page 4: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/4.jpg)
3. 1/u + 1/v = 1/f
A. u = image distance
B. v =object distance
C. v = image distance
D. f = u + v
![Page 5: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/5.jpg)
4.Which does NOT apply to the power of a lens
A. Measured in m-1
B. 1/f
C. Measured in D D. Always positive
![Page 6: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/6.jpg)
5.A diverging lens CAN produce a real image if
A. It has a high power
B. The object is virtual
C. The object is closer than the focal length
D. The image is diminished
![Page 7: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/7.jpg)
6.u =4cm, v = 6cm, f =?
A. 2.4cm B. 5cm
C. 3cm D. 10cm
![Page 8: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/8.jpg)
7.u=3cm, v=-4cm, f= ?
A. 0.83cm B. 12cm
C. –12cm D. –0.83cm
![Page 9: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/9.jpg)
8.The lens formula applies to
A. Thin mirrors B. All lenses
C. Thin lenses D. Octopus eyes
![Page 10: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/10.jpg)
9.This object is placed 4cm from a converging lens of
focal length 6cm. Its image is
A. B.
C.
D.
![Page 11: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/11.jpg)
10.Your favourite physics teacher’s eyesight has deteriorated from –2.25D to
–2.50D in 5 years. What is the rate of change of focal length in mmyr-1 ?
A.-0.0089 B 11.25
C. 0.0089 D. 1.25
![Page 12: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/12.jpg)
11.Which has the longest focal length?
A. Diverging lens, red light
B. Converging, lens blue light
C. Diverging lens blue light
D. Converging, lens red light
![Page 13: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/13.jpg)
12.Penguin eyes are more powerful
A. On land B. In water
C. In space D. In a pile of fish guts
Think – more powerful means f has decreased
![Page 14: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/14.jpg)
1.Which lens would make the best magnifying
glass ?A. Diverging, long focal length
B. Converging, long focal length
C. Diverging short focal length
D. Converging, short focal length
![Page 15: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/15.jpg)
2.Real is positive means
A. Diverging lenses have negative focal lengths
B. Diverging lenses never produce real images
C. Converging lenses always produce real images
D. Converging lenses only produce real images from close up objects
![Page 16: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/16.jpg)
3. 1/u + 1/v = 1/f
A. u = image distance
B. v =object distance
C. v = image distance
D. f = u + v
![Page 17: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/17.jpg)
4.Which does NOT apply to the power of a lens
A. Measured in m-1
B. 1/f
C. Measured in D D. Always positive
![Page 18: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/18.jpg)
5.A diverging lens CAN produce a real image if
A. It has a high power
B. The object is virtual
C. The object is closer than the focal length
D. The image is diminished
![Page 19: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/19.jpg)
6.u =4cm, v = 6cm, f =?
A. 2.4cm B. 5cm
C. 3cm D. 10cm
![Page 20: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/20.jpg)
7.u=3cm, v=-4cm, f= ?
A. 0.83cm B. 12cm
C. –12cm D. –0.83cm
![Page 21: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/21.jpg)
8.The lens formula applies to
A. Thin mirrors B. All lenses
C. Thin lenses D. Octopus eyes
![Page 22: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/22.jpg)
9.This object is placed 4cm from a converging lens of
focal length 6cm. Its image is
A. B.
C.
D.
![Page 23: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/23.jpg)
10.Your favourite physics teacher’s eyesight has deteriorated from –2.25D to
–2.50D in 5 years. What is the rate of change of focal length in mmyr-1 ?
A.-0.0089 B 11.25
C. 0.0089 D. 1.25
![Page 24: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/24.jpg)
11.Which has the longest focal length?
A. Diverging lens, red light
B. Converging, lens blue light
C. Diverging lens blue light
D. Converging, lens red light
![Page 25: Sound of Music](https://reader033.vdocuments.net/reader033/viewer/2022061422/5681376e550346895d9f06cb/html5/thumbnails/25.jpg)
12.Penguin eyes are more powerful
A. On land B. In water
C. In space D. In a pile of fish guts
Think – more powerful means f has decreasedFor the best refraction you want the biggest difference refractive index
C. In space