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Physics

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Maymie Goyette

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Cards in this guide (12)
What unit is used to measure resistance

ohm

The relationship between the angle of incidence and the angle of refraction is known as law

Snell law.

A string of 15 Christmas tree lights is connected in series to a 90 volt power source What is the value of the resistance of each light if the current flowing through the circuit is 2 amps

3
3 ohms

What is the drawing of an electrical circuit called

"schematic diagram" or "schematic drawing"

A ray of light strikes a flat surface of water The angle that the incoming light ray makes with the normal is called the angle of

incident

The apparent change in the frequency of a sound emitted by a moving object as it passes a stationary observer is called the what effect

Doppler effect.

Three 15 ohm resistors are connected in parallel to a 30 volt battery What is the equivalent resistance through the circuit

5 ohms...

What is a group of planets that orbit a star

A solar system.

A string of 20 Christmas tree lights are connected in series to a 20 volt power source The bulbs each have a resistance of .5 ohm How much current is flowing through the circuit

2 amps. If it is D.C.

Five resistors are connected together in series One resistor is 2 ohms one is 3 ohms one is 4 ohms one is 5 ohms and the fifth is 6 ohms What is the total resistance

Purely additive. 2+3+4+5+6=20.

A 5 ohm resistor a 20 ohm resistor and a 25 ohm resistor are all connected in series to a 100 volt power source What is the current running through the circuit

2 amps. 100 volts divided by 50 ohms = 2 amps. E/R=I.

What is the total current flowing through a 45 ohm resistor 1.4 amps and 20 ohm resistor 1.8 amps

Just add the amps (3.2 amps).

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