Circuits, Conductors, Resistivity, Resistance Review

Circuits & Conductors Review

Multiple Choice

A cheetah travels 75 m in 3 s. Her velocity of 25 m/s over the interval is

• instantaneous
• average

Multiple Choice

An object is NOT accelerating if it is moving

• in a circle
• at constant velocity 
• at increasing speed
• only as influenced by gravity

Open Ended

What's your good thing OR what's something you're grateful for?

This question set will serve to be a review of the following note sets:

- Circuits

- Conductors

- Resistivity & Resistance

- Circuit Builder

Electric Current

-Part 1-

Multiple Choice

A circuit has 2.5 A of current. How much charge travels

through the circuit after 4s?

• 2 C

• 4 C

• 8 C

• 10 C

Multiple Choice

A circuit has 3 A of current. How long does it take 45 C

of charge to travel through the circuit?

• 3 s

• 5 s

• 15 s

• 20 s

Multiple Choice

12 C of charge passes a location in a circuit in 10

seconds. What is the current flowing past the point?

• 1.2 A

• 3.3 A

• 4.8 A

• 5.0 A

Conductors & Ohm's Law

-Part 2a-

Multiple Choice

What is the resistance of a rheostat coil, if 0.05 A of

current flows through it when 6 V is applied across it?

• 120 Ω

• 220 Ω

• 240 Ω

• 310 Ω

Multiple Choice

How much voltage is needed in order to produce

a 0.70 A current through a 490 Ω resistor?

• 114 V

• 267 V

• 343 V

• 408 V

Multiple Choice

A flashlight has a resistance of 25 Ω and is connected

by a wire to a 120 V source of voltage. What is the

current in the flashlight?

• 3.2 A

• 4.8 A

• 5.5 A

• 7.1 A

Power

-Part 2b-

Multiple Choice

When 30 V is applied across a resistor it generates

600 W of heat: what is the magnitude of its resistance?

• 0.7 Ω

• 1.5 Ω

• 5.0 Ω

• 7.2 Ω

Multiple Choice

A 30Ω toaster consumes 560 W of power: how

much current is flowing through the toaster?

• 2.2 A

• 3.8 A

• 4.3 A

• 5.0 A

Multiple Choice

A toy car's electric motor has a resistance of 15 Ω;

find the power delivered to it by a 6-V battery.

• 0.21 W

• 0.42 W

• 1.2 W

• 2.4 W

Multiple Choice

A toy car's electric motor has a resistance of 15 Ω;

find the power delivered to it by a 6-V battery.

• 0.21 W

• 0.42 W

• 1.2 W

• 2.4 W