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Worksheets8th STAAR Review 1
Total questions: 21
Worksheet time: 36mins
Name
Class
Date
1.
Element or compound?
O2
O2
a)
Element
b)
Compound
2.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
3.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
4.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
5.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
6.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
7.
How many Valence Electrons does Argon have?
a)
2
b)
3
c)
8
d)
18
8.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
9.
How many protons does Carbon have?
a)
3
b)
4
c)
5
d)
6
10.
Which subatomic particle has a neutral charge?
a)
Proton
b)
Neutron
c)
Electron
11.
How many NEUTRONS are in Sodium?
a)
11
b)
12
c)
22.990
d)
23
12.
How many valence electrons does Barium (Ba) have?
a)
1
b)
2
c)
5
d)
6
13.
Which of the following equations is balanced?
a)
2H2 + O2 ---> H2O
b)
H2 + 2O2 ---> 2H2O
c)
H2 + O2 ---> H2O
d)
2H2 + O2 ---> 2H2O
14.
What is the part of the chemical equation in green called?
H2 + O --> H2O
H2 + O --> H2O
a)
reactants
b)
chemical equation
c)
yields
d)
products
15.
Balanced or unbalanced?
C2H4 + H2 --> C2H6
C2H4 + H2 --> C2H6
a)
Balanced
b)
Unbalanced
16.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
17.
If an object is still OR moving at a constant speed, the forces are
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
18.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
19.
F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
a)
20 N
b)
2 N
c)
5 N
d)
0 N
20.
A bowling ball with a mass of 4kg is rolled with 20N of force. What will the bowling ball's acceleration be?
a)
4m/s2
b)
80m/s2
c)
5m/s2
d)
24m/s2
21.
Calculate the distance (in miles) that Daniel bikes if he maintains an average speed of 26 miles/hr for 7 hours
a)
33 miles
b)
3.71 miles
c)
182 miles
d)
676 miles
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