Wavelength, amplitude and frequency
Grade 8 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
A rope wave's crest is 3 squares above the rest line on a grid. Each square stands for 10 cm. What is the amplitude, Ari?
A water ripple's crest is 2 squares above the rest line on a grid. Each square stands for 5 cm. What is the amplitude, Bo?
A rope wave's crest is 4 squares above the rest line on a grid. Each square stands for 2 cm. What is the amplitude, Esme?
In the wave graph, which letter marks a crest, Jun?
- C
- B
- A
In the wave graph, what is the amplitude, Kira?
Use the picture in question 4.
- 80 cm
- 30 cm
- 60 cm
In the wave graph, which arrow shows the amplitude, Luz?
Use the picture in question 4.
- An arrow from a crest down to a trough
- C
- D
A rubber duck floats on a pond as ripples pass under it. What does the duck do, Milo?
- Rides the ripples to the far edge
- Sinks under each crest
- Bobs up and down in about the same spot
Sound travels from a drum to Pia's ears. What travels across the room?
- The same air, from the drum to the ears
- Tiny bits of the drum
- Energy, passed along by vibrating air
Which sound wave carries more energy: a soft hum or a loud shout, Tala?
- Both the same, since both are sound
- The soft hum, since small waves carry more
- The loud shout, with its bigger amplitude
Zee drops a big stone and a small pebble into a pond. Which makes taller ripples?
- The pebble, since small things make big waves
- The big stone, which gives more energy
- Neither; ripple height has nothing to do with energy