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Chem with E & M

Total questions: 48

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

Is H2O2 an element or a compound?

a)

element

b)

compound

2.

An atom that gains or loses an electron becomes

a)

an isotope

b)

a new element

c)

an ion

d)

a molecule

3.

How many different elements are in the C6H12O6

a)

3

b)

6

c)

12

d)

24

4.

What is the charge of an aluminum ion that has 13 protons and 10 electrons?

a)

3+

b)

3 -

c)

no charge

5.

When a chemical reaction occurs...

a)

New molecules and atoms are formed

b)

Molecules and atoms are rearranged

c)

Molecules and atoms disappear

d)

Molecules and atoms are destroyed

6.

The law of Conservation of Mass states

a)

matter can be created and destroyed

b)

matter takes up space

c)

matter cannot be created or destroyed

d)

matter has a new mass after a chemical reaction

7.

What are the starting materials in a reaction?

a)

product

b)

subscript

c)

coefficient

d)

reactants

8.

What is the substance that is formed after a chemical reaction called?

a)

product

b)

subscript

c)

coefficient

d)

reactants

9.

where are the reactants in an equation?

a)

The reactants are on the left side of an equation

b)

the reactants are on the right side of an equation

10.

where are the products in an equation?

a)

The products are on the right side of the equation

b)

The products are on the left side of the equation

11.

How many total POTASSIUM atoms are in this formula?

a)

8

b)

2

c)

4

d)

12

12.

How many elements are in this chemical formula? NaHCO3NaHCO_3  

a)

1

b)

2

c)

3

d)

4

13.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

14.
a)
2
b)
3
c)
5
15.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

16.

How many protons are in Gold

a)

79

b)

197

c)

118

d)

276

17.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
18.
The girl's hair and the comb are attracting  one another.  The hair and the comb have
a)
opposite charges
b)
like charges
19.
If an object has more positive than negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
20.
Static means...
a)
not moving
b)
moving slowly
c)
moving quicky
21.

Positive subatomic particle

a)

Neutron

b)

Electron

c)

Proton

d)

Atom

22.

subatomic particle with no charge

a)

Neutron

b)

Electron

c)

Atom

d)

Proton

23.

negative subatomic particle

a)

Electron

b)

Neutron

c)

Electricity

d)

Proton

24.

presence and/or flow of electrons

a)

Atom

b)

Negative

c)

Electron

d)

Electricity

25.

push or pull attractions between objects

a)

Force

b)

Electron

c)

Electricity

d)

Static Charge

26.

charging through direct contact

a)

Induction

b)

Friction

c)

Conduction

d)

Insulator

27.

charging without contact

a)

Friction

b)

Conduction

c)

Conductor

d)

Induction

28.

material that allows electrons to easily pass through

a)

Insulator

b)

Conduction

c)

Rubber

d)

Conductor

29.

material that does NOT allow electrons to pass through

a)

Conductor

b)

Copper

c)

Insulator

d)

Electricity

30.

Examples of a conductor . . .

a)

Rubber, Wood, and Plastic

b)

Copper, Silver, and Gold

c)

Plastic, Aluminum, and Rubber

d)

Styrofoam, Copper, and Wood

31.

Examples of an Insulator

a)

Gold, Bacon, and Cheesy Puffs

b)

Aluminum, Plastic, and Tin

c)

Rubber, Wood, and Plastic

d)

Copper, Styrofoam, and Aluminum

32.
a)

Series circuit

b)

Parallel circuit

33.
a)

Parallel Circuit

b)

Series Circuit

34.

a unit of electric current equal to a flow of one coulomb per second.

a)

current

b)

Analog

c)

Amperes

d)

Digital

35.

Safety device for electrical device

a)

Circuit

b)

Digital

c)

Fuses

36.

___________ are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses

a)

Capacitors

b)

Antennas

c)

Resistors

d)

Transistors

37.

Energy is the ability to do work.

a)

True

b)

False

38.

Part of a circuit that controls the open-ness or closed-ness of the electric flow.

a)

Series Circuit

b)

Switch

c)

Parallel Circuit

d)

Generator

39.

A complete, connected circuit:

a)

Closed Circuit

b)

Conductor Circuit

c)

Open Circuit

40.

What happens when a light bulb blows?

a)

Too little voltage through the light.

b)

Too much voltage through the light.

41.
Metals such as copper and aluminum are good ______________. 
a)
insulators
b)
conductors
c)
circuits
d)
charges
42.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
43.
Current is...
a)
moving protons
b)
moving electrons
c)
measured in volts
d)
measured in ohms
44.
___________ wires keep electrons on course & protect us from the dangerous flow of electricity. 
a)
Insulated
b)
Conducted
45.

The continuous flow of electric charges through a material

a)

electric current

b)

electric circuit

c)

voltage

d)

parallel circuit

46.

A form of energy caused by the movement of electrons

a)

electricity

b)

voltage

c)

electric current

d)

parallel circuit

47.

current consisting of charges that move back and forth in a circuit

a)

alternating current

b)

direct current

c)

parallel current

d)

electric current

48.

An electric current flowing in one direction only

a)

voltage

b)

parallel current

c)

direct current

d)

electric current

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