WorksheetsPPE Revision quiz part one
Total questions: 10
Worksheet time: 7mins
If the total amount of energy is 5000J, the wasted energy is 3000J. What is value of efficiency?
0.6
1.67
0.4
2.5
If the total amount of energy is 5000J, the wasted energy is 3000J. What is useful energy?
3000J
5000J
8000J
2000J
Conservation of energy tells us the total energy in a closed system is...
changing all the times
constant
increased
decreased
This is a wave. Please label the number of y.
(a)
This is a ...
transverse wave
longitudinal wave
This is a ...
transverse wave
longitudinal wave
Which one is longitudinal wave?
water wave
sound wave
The wave along the guitar string.
light
If the frequency of a sound wave is 200Hz and the wavelength of this wave is 1.5 m, what is the value of wave speed?
(a)
Please select the correct name for label a and label b.
a is red
b is violet
b is violet
a is red
Fill the name of labels a and b.
a is smaller.
b is higher
a is longer
b is lower
a is smaller
b is lower
a is longer
b is higher.
