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Physical Science Benchmark

Total questions: 50

Worksheet time: 30mins

Name
Class
Date
1.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
2.
Convert 0.25 m to mm
a)
25
b)
2.5
c)
250
d)
0.025
3.
There are ___ millimeters(mm) in 2.7 centimeters (cm)
a)
270 mm
b)
.27 mm
c)
27 mm
d)
.027 mm
4.

What is a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout (Ex. Sugar water)?

a)

Heterogeneous mixture

b)

Colloid

c)

Suspension

d)

Solution

5.

What is a type of mixture that is evenly mixed so you cannot see the parts and it looks all the same (Ex. Paint)

a)

Element

b)

Compound

c)

Heterogeneous mixture

d)

Homogeneous mixture

6.

What is a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout (Ex. Sugar water)?

a)

Heterogeneous mixture

b)

Colloid

c)

Suspension

d)

Solution

7.

What is a type of mixture in which different parts can easily be seen (Ex. Vegetable soup)?

a)

Heterogeneous mixture

b)

Homogeneous mixture

c)

Solution

d)

Colloid

8.

What is a pure substance made of 2 or more elements chemically combined in a specific ratio (Ex. Water)?

a)

Element

b)

Compound

c)

Mixture

d)

Solution

9.

Which of the three particles has the smallest mass?

a)

proton

b)

neutron

c)

electron

10.

Which particle has a positive electrical charge?

a)

proton

b)

neutron

c)

electron

11.

What is a pure substance that cannot be broken down into any other substances by chemical or physical means (Ex. Oxygen)?

a)

Element

b)

Compound

c)

Colloid

d)

Suspension

12.

Through which medium does sound travel fastest?

a)

gas

b)

liquid

c)

solid

d)

vacuum

13.

Which light wave travels fastest through a vacuum?

a)

red

b)

blue

c)

white

d)

they all travel the same speed through a vacuum

14.

Which of the following is the least reactive?

a)

Neon

b)

Hydrogen

c)

Silicon

d)

Francium

15.

What two subatomic particles give the atom its mass?

a)

electrons & quarks

b)

electrons & protons

c)

protons & neutrons

d)

neutrons & quarks

16.

mass # - proton # =

a)

electron #

b)

shell #

c)

density #

d)

neutron #

17.

What is the electron cloud divided into?

a)

groups

b)

periods

c)

energy levels/shells

d)

spins

18.

What do we call the center of the atom?

a)

the electron cloud

b)

the nucleus

c)

the quark

d)

the proton center

19.
A gas has
a)
a definite volume but no definite shape.
b)
a definite shape but no definite volume.
c)
no definite shape or definite volume.
d)
a definite volume and a definite shape
20.
What is the result of a force distributed over an area?
a)
temperature
b)
volume
c)
pressure
d)
mass
21.
The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will
a)
increase
b)
decrease
c)
remain constant
d)
cause a decrease in the average kinetic energy of the particles
22.
A force of 100 newtons was necessary to lift a rock.  A total of 150 joules of work was done.  How far was the rock lifted?
a)
1.5m
b)
15,000 m
23.
 An atom is neutral if...    
a)
The number of protons = electrons
b)
The number of neutrons = protons
c)
The number of protons∠ electrons
d)
 Electrons+Neutrons = 0
24.
The smallest common particle in the atom...   
a)
electron
b)
proton
c)
nucleus 
d)
neutron
25.
Neutrons are important because...      
a)
They hold the nucleus together
b)
They have a positive charge
c)
 They orbit outside of the atom
d)
All of these
26.
vertical columns in the periodic table are _________ of elements with similar properties. 
a)
groups
b)
periods
27.
_______ are horizontal  rows of elements that contain increasing numbers of protons and electrons.
a)
groups
b)
periods
28.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
29.
Which of the following determines the identity of an element?
a)
atomic number 
b)
mass number
c)
atomic mass
d)
overall charge
30.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
31.

The _ is a small, dense region at the center of the atom. It consists of positive protons and neutral neutrons, so it has an overall positive charge.

a)

protons

b)

neutrons

c)

nucleus

d)

electrons

32.

Look at the following equation

_NaCl + _ CaF2 => _NaF + _CaCl2

a)

2,1,3,1

b)

2,2,2,2

c)

2,1,2,1

d)

1,3,1,3

33.

Joe places a whole orange on a scale and finds that the reading on the scale is the same as when he cuts the orange into segments on the scale at one time. The reading on the scale show an example of which scientific law?

a)

the law of conservation of energy

b)

the of conservation of mass

c)

the law of gravity

d)

the law of inertia

34.

An astronaut travels at a speed of 400 m/s for 250 seconds, what is the total distance he traveled?

a)

0.625 m

b)

100,000 m

c)

1.6 m

d)

650 m

35.

1. Amy runs 2 miles south, then turns around and runs 3 miles north. What is her distance?

a)

5 miles

b)

1 miles

c)

2 miles

d)

3 miles

36.

This rule describes the relationship between a circuit's resistance, voltage difference and current.

a)

Law of Conservation of charge

b)

Ampere's Law

c)

Volt's Law

d)

Watt's Law

e)

Ohm's Law

37.

This rule describes the relationship between a circuit's resistance, voltage difference and current.

a)

Law of Conservation of charge

b)

Ampere's Law

c)

Volt's Law

d)

Watt's Law

e)

Ohm's Law

38.

This is the amount of electricity that is flowing through a wire at a given time (unit is Amps)

a)

Current

b)

Voltage

c)

Resistance

d)

Electrical Power

39.

This is the when a material slows down the flow of electricity and converts some of the electrical energy into heat (units is Ohms).

a)

Current

b)

Voltage

c)

Resistance

d)

Electrical Power

40.

This is an object that will allow a flow of current through it with very low resistance.

a)

Insulator

b)

Conductor

c)

Flower

d)

Electrolytes

41.

This is an object that will not allow a flow of current through it (it has a very high resistance).

a)

Insulator

b)

Conductor

c)

Flower

d)

Electrolytes

42.
The __________ variable is the one that is manipulated; it's what I change.
a)
independent
b)
dependent
c)
constant
d)
control
43.
This is a well-tested explanation.
a)
Hypothesis
b)
Law
c)
Testable Question
d)
Theory
44.
Which state of matter has a definite shape?
a)
solid
b)
liquid
c)
gas
45.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
46.

What type of element is pictured here?

a)

Lithium

b)

Beryllium

c)

Boron

d)

Hydrogen

47.

How many neutrons does this isotope contain?

a)

8

b)

6

c)

14

d)

12

48.
Which element is this on the periodic table?
a)
3rd element
b)
7th element
c)
13th element
d)
6th element
49.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
50.

What is the overall charge of the compound sodium chloride?

a)

-2

b)

0

c)

+1

d)

+3

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