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Checkpoint Review #1

Total questions: 50

Worksheet time: 2hrs 31mins

Name
Class
Date
1.

Balanced or Unbalanced: A runner jumping over a hurdle.

a)

balanced

b)

unbalanced

2.

Balanced or Unbalanced: A lamp sitting on a table.

a)

balanced

b)

unbalanced

3.

Balanced forces causes

a)

speed of an object

b)

change in motion

c)

no change in motion

d)

no friction on object

4.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
5.

Calculate the net force shown in the  diagram?

(a)  

6.

A push or a pull is the definition of a ____________________.

a)

force

b)

speed

c)

direction

7.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
8.
Which has more Inertia? (so need more force to move) 
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
9.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
10.
The ______of an object tends to make the object resist being set into motion.
a)
mass
b)
force
c)
motion
d)
unbalanced forces 
11.

A chemical combination of two or more elements

a)

element

b)

liquid

c)

solid

d)

compound

12.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)
0
b)
1
c)
2
d)
3
13.
What is H2SO4 
 made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
14.

Glucose (C6H12O6) is considered a compound because it is made up of two or more

a)

molecules

b)

elements

c)

gases

d)

soilds

15.

How many atoms of Carbon are in this formula? C6 H12O6C_{6\ }H_{12}O_6  

a)

6

b)

1

c)

12

16.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
17.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
18.
65mi/hr South is an example of...
a)
Speed
b)
Velocity
c)
Acceleration
d)
Direction
19.
a)

Object A is the slowest

b)

Object B is the slowest

c)

Object C is the slowest

d)

Object D is the slowest

20.

What does this graph represent?

a)

Constant speed

b)

Acceleration

c)

Not moving

21.

a)

A

b)

B

c)

C

22.

Is melting butter for popcorn a chemical or physical change?

a)

chemical

b)

physical

23.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
24.

What sign of a chemical change is evident in a fire?

a)

color change

b)

producing heat

c)

light produced

d)

all of the above

25.
Fireworks
a)
Physical Change
b)
Chemical Change
26.

What evidence in the picture indicates that a chemical change occurred?

a)

temperature change

b)

odor

c)

gas

27.

What sign of a chemical change is evident in a rusted nail?

a)

change is odor

b)

change in appearance

c)

change in color

d)

change in shape

28.

I mix a liquid with a solid and it fizzes. What evidence tells me that a chemical change occurred?

a)

It fizzes

b)

it is not a chemical change

c)

the liquid was mixed with the solid

d)

color change

29.

The basic unit of an element is called ___

a)

atom

b)

element

c)

proton

d)

product

30.

____ is a substance that can't be broken down. It's made of one kind of atom.

a)

atom

b)

element

c)

mixture

d)

product

31.

______ is the process where one or more substances change into one more more new substances.

a)

reactants

b)

products

c)

chemical reaction

d)

magic

32.

The substances that react together are _____

a)

reactants

b)

products

c)

chemical reaction

d)

magic

33.

The substances are made in a chemical reaction are _____

a)

reactants

b)

products

c)

chemical reaction

d)

magic

34.

The ___ tells us how many MOLECULES to make. It goes in front of the chemical formula.

a)

subscript

b)

coefficient

c)

number

d)

4

35.

The ___ tells us how many ATOMS there are for one element in a chemical formula. It goes BELOW the element symbol.

a)

subscript

b)

coefficient

c)

number

d)

4

36.

How many TOTAL ATOMS are in H2O ?

a)

1

b)

2

c)

3

d)

4

37.

How many TOTAL ATOMS are in CaCO3 ?

a)

1

b)

3

c)

4

d)

5

38.

How many TOTAL ATOMS are in 2H2 ?

a)

1

b)

2

c)

3

d)

4

39.
A solution is a ___________mixture.
a)
heterogeneous
b)
homogeneous
c)
concentration
d)
ionic
40.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
41.

Avery is conducting a science experiment. When water is added to a solution it is called a ______________

a)

dilution

b)

concentration

c)

heterogeneous solution

d)

dissociation

42.

A solution that contains all of the solute that it can hold at a given temperature.

a)

unsaturated solution

b)
saturated solution
c)

homogeneous solution

d)
diluted solution
43.
a)

solvent

b)

solute

44.
a)

solute

b)

solvent

45.
a)

solvent

b)

solute

46.

What happens to the concentration of a solution when more solvent (water) is added?

a)

It increases

b)

It decreases

c)

It remains the same

d)

It doubles

47.

Which factor does NOT affect the rate of dissolution of a solid solute in an aqueous solution?

a)

Temperature

b)

Surface area

c)

Agitation

d)

Color of the solute

48.

If you increase the temperature of a solution, what generally happens to the rate of dissolution of a solid solute?

a)

It decreases

b)

It increases

c)

It remains the same

d)

It doubles

49.

How does increasing the surface area of a solid solute affect its rate of dissolution?

a)

It increases the rate

b)

It decreases the rate

50.

What is the effect of stirring (agitation) on the rate of dissolution of a solid solute in an aqueous solution?

a)

It decreases the rate

b)

It increases the rate

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