1) What is the unit of energy? a) Joule b) Watt c) Mole d) Spark 2) What is the unit of Power? a) Voltage b) Watt c) Seconds d) Miles 3) A sankey diagram can be used to tell if a device is......... a) Built Well b) Quiet c) Efficient d) Expensive 4) 100J of energy went into this petrol motor. How many Joules came out? a) 45 b) 150 c) 100 d) 0 5) The wasted energy for this motor is in the form of.... a) Heat and light b) Sound and Heat c) Kinetic and Heat d) Chemical and Sound 6) If 100J go in, and 50J are converted into sound energy and 30J are converted into heat energy, how many Joules are converted in Kinetic energy? a) 0J b) 25J c) 100J d) 20J 7) Power is the rate at which energy is transferred. a) True b) False 8) A bulb that converts less energy (J) per second will be more bright. a) True b) False 9) A 60W bulb converts 60J of energy in one second. a) True b) False 10) A 60W bulb converts 120J of energy in 2 seconds. a) True b) False 11) How many seconds does it take a 120W bulb to convert 120 J of energy. a) 60 b) 1 c) 120 d) 0 12) Power is the .......... at which energy is transfered. a) time b) place c) way d) rate 13) Which part of the EM spectrum has the largest wavelength? a) Radiowaves b) Visible Light c) Microwaves d) Gamma 14) The number of waves per second is described by.. a) Amplitude b) Frequency c) Wave Speed d) Wavelength 15) High frequency will have low wavelength. a) True b) False 16) Which statment is CORRECT? a) Increasing frequency increases volume. b) Light is a longitudinal wave. c) Wavelength is measured in cm d) Sound is a longitudinal wave.

Review Quiz

by Anonymous
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?