Intro to Electricity

Presentation

•

Science

•

9th Grade

•

Hard

Joseph Anderson

FREE Resource

22 Slides • 26 Questions

Electricity Introduction

By William Lovering

Multiple Choice

If an object has the same number of positive and negative charges, its electrical charge is...

positive

negative

neutral or no charge

opposite

Multiple Choice

Objects that have an electric charge exert a force on other charged objects around them. This force is called ______.

electrical force

static electricity

electromagnetic force

subatomic particle

Multiple Choice

Opposite charges

attract

repel

become neutral

do nothing

Multiple Choice

The accumulation of excess electric charge on an object is called

Static electricity

Electric discharge

Resistance

Current electricity

Multiple Choice

Which of the following statements is false about electric field lines

electric field lines cannot cross

electric field lines point away from positive charge

electric field lines are always straight lines

electric field lines show how a proton would move in an electric field

Multiple Choice

___ are good conductors because they have loose electrons.

copper

aluminum

metals

all of the above

Multiple Choice

Which of the following is an example of a conductor?

plastic

copper

glass

rubber

Multiple Choice

Removing a static charge by providing a path to the ground is called __.

electric transfer

grounding

switching

seperation

Multiple Choice

Only the __ move to create unbalanced charges.

Neutrons

Protons

Electrons

Static Electricity

Multiple Choice

Walking across a carpet is an example of charge being transferred by

friction.

induction.

contact.

Multiple Choice

What method of static charging is shown in this picture

Polarization

Friction

Induction

Conduction

Multiple Choice

One example of static electricity is...

rain

thunder

lightning

Multiple Choice

Transferring a charge without touching is ___

conduction

induction

grounding

Newtons 3rd law

Multiple Choice

Voltage is measured in __.

volts.

watts.

coulombs.

Multiple Choice

The movement of electrons from atom to atom in a line results in a flow of _____.

amperage.

electric current.

electromagnetic connectors.

Multiple Choice

As the resistance of a circuit increases, the current will

increase

decrease

stay the same

Multiple Choice

Resistance is

Measured using an ammeter

Units are 'volts'

How difficult it is for electrons to move through an object

The continuous movement of electrons in a wire

Multiple Choice

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

1 Ohm

3 Ohms

4 Ohms

12 Ohms

Multiple Choice

What is current measured in?

Ω (Ohms)

V (Volts)

A (Amps)

W (Watts)

Multiple Choice

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

25 V

10 V

2.5 V

0.4 V

Multiple Choice

Voltage divided by Resistance

(V / R)

Current

Power

Ohms

Watts

Multiple Choice

The power of an appliance is...

the amount of voltage going through it

the amount of energy transferred per second

the amount of charge that passes through per second

Multiple Choice

Electrical power can be calculated using

Resistance x Voltage

Voltage x Current

Voltage ÷ Current

Multiple Choice

The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?

170 W

170 A

1.7 V

1.7 W

Multiple Choice

Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.

Remember: V=IR and P=VI

80 W

200 W

2.5 A

22.5 KJ

Fill in the Blanks

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Electricity Introduction

By William Lovering

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