Download Review - Fort Bend ISD

1st Semester Science Review
1. Define the following terms:
a. Acceleration-
d. Net force-
b. Velocity-
e. Force-
c. Inertia-
f. Speed-
2. What are the following an example of: SPEED, VELOCITY or ACCELERATION?
A person walks 3.5 mph. _______________
A car turns left while maintaining the same
A bike goes 30 m/s toward town. _________
speed. ______________________
A greyhound dog can run about 40 mi/hr.
A trip from Austin to Dallas takes about 3
________________________
hours going 65 mi/hr north. ____________
Monarch butterflies fly 12 mi/hr south as
Canadian geese can fly approximately 75
they migrate.___________________
miles in 3 hours. ____________________
A car slows from 60 mi/hr to 25 mi/hr.
A car increases speed from 30 mi/hr to 65
________________________
mi/hr. ____________________
3. Answer the questions using pictures one and two.
4. What is Newton’s 1st Law? Give an EXAMPLE.
8. What is the equation used to find speed?
5. What is Newton’s 2nd Law? Give an
EXAMPLE.
9. If a person pulls on a cart to the right with a
force of 20 N and a second person pulls to
the left with a force of 15 N, what is the net
force (and direction) on the cart?
10. If a person is pushing a cart with a force of 40 N
and it accelerates at 0.5 m/s², what is the
mass of the cart?
6. What is Newton’s 3rd Law? Give an
EXAMPLE.
11. What is the acceleration of a 2 kg rock that is
thrown with a force of 15 N?
7. What is the equation used to find the following
terms:
12. A 150 kg object is accelerating at a rate of 20
m/s. Calculate the force needed to produce
this acceleration.
a. Force –
b. Acceleration –
13. A car travels 2.5 hours in a northerly direction
for 300 km. Determine the car’s speed and
velocity.
c. Mass –
14. What is happening at each point in the graph below:
B
A
C
15.
16. Complete the table to the right:
+
0
17. What does APE MAN stand for?
18. Label the following information on the periodic table below(make a key):
a. Metals, nonmetals, and metalloids
c. Horizontal and Vertical
b. Periods and groups
d. Most reactive and valence electrons
19. Complete the following table:
Element Protons Electrons Neutrons Valence
Name
Electrons
Chlorin
e
Sodium
Magnes
20. Complete the following questions for the Bohr model
to the right:
ium
a. What is atomic number of the atom?
b. What is the mass number of the atom?
c. What is the name of the element represented?
d. What is the chemical symbol of the element?
21. Which group on the periodic table has 7 valence electrons?
22. Which group on the periodic table has 8 valence electrons?
23. What are signs a chemical change/reaction has occurred?
24. Circle the word that does NOT belong in each group, then write why it does not belong.
a. vertical column, group, period, valence electrons
b. group, period, seven, horizontal rows
c. neon, nitrogen, helium, argon
d. nonmetal, oxygen, gain electrons, calcium
e. copper, silver, zinc, gold
f. silver, nickel, cobalt, iron
25. Complete the following tables for each Bohr model:
+++
Element Protons Electrons Neutrons Valence
Name
Electrons
26. What is a subscript in a chemical equation?
Element Protons Electrons Neutrons Valence
Name
Electrons
27. What is a coefficient in a chemical
equation?
28. Counting Atoms- List the atoms and how many of each are present in each formula below:
C6H12O6
_________________________ ____
_________________________ ____
_________________________ ____
Ca(H2PO4)
_________________________ ____
_________________________ ____
_________________________ ____
2H2O
_________________________ ____
_________________________ ____
3Mg(OH2)
_________________________ ____
_________________________ ____
29. Is the chemical equation below balanced?
30. Does the equation above prove the Law of Conservation of Mass? Why or Why not?
31. Complete the chart by:
a. Identifying each of the substances by name.
b. Then, determine if the substance is an element or compound
c. Next, tell if the substance is a symbol or formula
d. Finally, decide if the substance is an atom or a molecule
Substance
O
O2
CO
NH3
Cl2
Name
Element
Compound
Symbol
Formula
Atom
Molecule