WorksheetsEWIT Interim Study Guide Quiz
Total questions: 25
Worksheet time: 22mins
What is being transferred with a wave?
medium
energy
matter
Chicken
Increasing the amplitude means you are increasing the _______________ of a wave.
frequency
amplitude
energy
wavelength
What is the amplitude of the wave?
3 cm
8 cm
16 cm
24 cm
What are the units of current?
joules (J)
amps (A)
volts (V)
ohms ( Ω )
What are the units of potential difference?
joules (J)
amps (A)
volts (V)
ohms ( Ω )
What happens to resistance when the length of the wire increases?
Stays the same
Increases
Decreases
As the diameter of a wire increases, the resistance of the wire will
increase
decrease
stay the same
What is the red line showing?
crest
trough
wavelength
amplitude
Which object shows an energy transformation from electrical to mechanical?
When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?
thermal energy to mechanical energy
thermal energy to chemical energy to mechanical energy
chemical energy to thermal energy to mechanical energy
chemical energy to electrical energy
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
A 10-V battery generates a current through a 5 Ω resistor. How much current does the battery generate?
2 A
50 A
2.5A
0.5
To complete the circuit, a wire should be placed from —
Why is electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
