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Physical Science chapter 13

Total questions: 35

Worksheet time: 19mins

Name
Class
Date
1.

An electric field in which the strength is evenly distributed throughout, as between plates of opposite charge.

a)

magnetocline

b)

isogonic field

c)

uniform field

d)

agonic field

2.

Causing a charge by bringing a charged object near, but not touching, a neutral object is charging by:

a)

induction

b)

convection

c)

radiation

d)

conduction

3.

The law that states that the total charge is the same before and after an interaction:

a)

law of conservation of charge

b)

law of electric forces

c)

law of electric charge

d)

law of conservation of electricity

4.

In a lightning bolt, what is the upward flow of charge from the ground called?

a)

dart leader

b)

return stroke

c)

positive streamer

d)

stepped leader

5.

An object that has no overall electrical charge because the positive & negative charges are balanced:

a)

grounded

b)

positive

c)

negative

d)

neutral

6.

An excess of electrons causes a ______ charge.

a)

grounded

b)

positive

c)

negative

d)

neutral

7.

Electric charges are considered ____ electricity.

a)

direct

b)

storable

c)

contact

d)

static

8.

t/f the study of the nature, behavior, & uses of static electricity & related phenomena is electricty

a)

true

b)

false

c)

trae

d)

fulese

9.

t/f the flow of charge from one place to another is current.

a)

true

b)

false

c)

tralse

d)

frue

10.

t/f when a charged rod is touched to the top of an electroscope, charge is transferred from the rod to the electroscope through induction.

a)

true

b)

false

c)

tralse

d)

fulue

11.

How do opposite charges react to each other?

a)

attract

b)

repel

c)

twist

d)

neutralize

12.

What protects buildings from lightning strikes?

a)

Leyden jar

b)

lightning rod

c)

electroscope

d)

Van de Graaff generator

13.

Which is an early device used to store an electric charge?

a)

electroscope

b)

Leyden Jar

c)

Van de Graaff generator

d)

lightning rod

14.

What is a simple device used to detect small electric charges?

a)

Leyden Jar

b)

electroscope

c)

capacitor

d)

electrostatic generator

15.

t/f the process of diverting unwanted electrical charge directly into the earth is called grounding.

a)

true

b)

false

c)

falue

d)

tralse

16.

What term refers to the interactions between electrons & other charged particles?

a)

electricity

b)

electroscope

c)

static charges

d)

capacity

17.

What is the SI unit of charge?

a)

coulomb

b)

watt

c)

volt

d)

amperes

18.

t/f the hairs of your head stand up & apart from each other when touching a Van de Graaff generator due to like charges attracting.

a)

true

b)

false

19.

What is the general term for a modern device used to store electric charge?

a)

Leyden jar

b)

electroscope

c)

capacitor

d)

Van de Graaff generator

20.

What term means "dry writing?"

a)

xerography

b)

elecrostatics

c)

photocopier

21.

t/f induction can be made permanent by combining it with grounding.

a)

true

b)

false

22.

t/f lightning rods make use of the process of grounding

a)

true

b)

false

23.

Who discovered that lightning is caused by static electricity in clouds?

a)

Ben Franklin

b)

William Gilbert

c)

Thales of Miletus

d)

Albert Einstein

24.

t/f the property of protons & electrons that allows them to attract & repel other charged particles is electric charge.

a)

true

b)

false

25.

What is a deficiency of electrons?

a)

negative

b)

positive

c)

neutral

d)

grounded

26.

What is the region around a charged object in which other objects are attracted or repelled?

a)

force line

b)

electric field

c)

uniformity field

d)

static field

27.

If 2 electrically charged objects attract each other with a force of 1.0 N when they are 5.0 cm apart, what will be the force when they are 1.0 cm apart?

a)

25 N

b)

30 N

c)

15 N

d)

10 N

28.

If 2 charged objects have a 125 N force between them when they are 3.00 m apart, what will the force be if you increase the distance to 15.0 m?

a)

5.00 N

b)

15.0 N

c)

30.0 N

d)

45.0 N

29.

t/f charging by induction produces two charges instead of one.

a)

true

b)

false

c)

tralse

30.

t/f only conduction follows the law of conservation of charge.

a)

true

b)

false

c)

falue

31.

Which type of current requires electrolytes?

a)

current in gases

b)

currents in liquids

c)

currents in solids

d)

currents in wires

32.

Who built the first electrostatic generator?

a)

Otto von Guericke

b)

Robert J. Van de Graaff

c)

William Gilbert

d)

Ben Franklin

33.

t/f the principle that electric charge always moves to the outside of the charged object is what makes a vehicle a safe shelter in a thunderstorm.

a)

true

b)

false

c)

tralse

d)

falue

34.

Who was one of the first scientists to discover that electric charges can be stored?

a)

Otto von Guericke

b)

Robert J. Van de Graaff

c)

Pieter van Musschenbroek

d)

Benjamin Franklin

35.

What is a device used to produce static electricity?

a)

electrostatic generator

b)

capacitor

c)

Leyden jar

d)

electroscope