WorksheetsPhysical Science Review
Total questions: 22
Worksheet time: 23mins
Name
Class
Date
1.
Which liquid is the most dense?
a)
lamp oil
b)
milk
c)
soda cap
d)
corn syrup
2.
Based on this table it can be concluded that
a)
Sodium is the most reactive
b)
strontium is the best conductor
c)
phosphorous is the least stable
d)
aluminum has the most protons
3.
Which pair of elements have the same number of valence electrons?
a)
Lithium and Beryllium
b)
Magnesium and Sodium
c)
Lithium and Sodium
d)
Magnesium and Lithium
4.
An experiment is performed in which a crystalline substance is added to a beaker filled with room temperature water. The following observations are made:
I. The crystals dissolve
II. A precipitate is formed.
III. The bottom of the beaker feels warm to the touch.
IV. Bubbles begin forming within the water.
All of the observations are evidence of a chemical change EXCEPT –
I. The crystals dissolve
II. A precipitate is formed.
III. The bottom of the beaker feels warm to the touch.
IV. Bubbles begin forming within the water.
All of the observations are evidence of a chemical change EXCEPT –
a)
observation I.
b)
observation II.
c)
observation III.
d)
observation IV.
5.
How many total atoms in 4NaHCO3 ?
a)
24
b)
4
c)
16
d)
15
6.
(1802) What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
8
7.
(1803) What element is represented in this Bohr Model?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
8.
How do scientists know how atoms are structured?
a)
By looking at them under a microscope
b)
By running experiments that expose their properties
c)
By examining only the largest atoms
d)
By splitting them apart
9.
What is the mass number of this atom?
a)
9
b)
10
c)
19
d)
27
10.
In a tug of war game, the NET FORCE is 50N to the LEFT. The winning team pulled with a force of 200N to the left. How much force did the losing team pull with?
a)
150N right
b)
250N right
c)
100N right
d)
50N right
11.
The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 5 m/s?
a)
The boat increase speed and continue moving left.
b)
The boat will sink.
c)
The boat will move backwards.
d)
The boat will continue sailing to the left at a constant speed of 4 m/s.
12.
When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)
Newton's Law of Force Pairs
d)
Newton's Law of Biology
13.
Which law best explains why people remain in motion when a car crashes, if they are not wearing a seat belt?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)
Newton's Law of Force Pairs
d)
Newton's Law of Biology
14.
Calculate the acceleration of the tire in the diagram.
a)
5.3 m/s2
b)
0.2 m/s2
c)
12.0 m/s2
d)
9.8 m/s2
15.
A man hits a 0.2 kg golf ball causing it to accelerate at rate of 20 m/s2. Calculate the force used on the golf ball.
a)
4 N
b)
100 N
c)
0.01 N
d)
20.2 N
16.
A force of 560 N is needed to produce an acceleration of 20 m/s2. What is the mass of the accelerated body?
a)
28 kg
b)
11200 kg
c)
0.04 kg
d)
580 kg
17.
Ralph is concerned about the number of ants in his kitchen. He wonders if cleaning the kitchen more than once a month would fix the problem.
What is the best hypothesis for this situation?
What is the best hypothesis for this situation?
a)
If the kitchen is cleaned once a week instead of once a month, then the number of ants will be fewer than if the kitchen is cleaned once a month.
b)
If the kitchen is cleaned, then will the number of ants go down?
c)
The filthiness of the kitchen is causing the ant infestation.
d)
If the kitchen is cleaned, then the number of ants will decrease.
18.
Ralph is concerned about the number of ants in his kitchen. He wonders if cleaning the kitchen more than once a month would fix the problem.
What will be measured in the experiment?
What will be measured in the experiment?
a)
Ralph's concern.
b)
How often the kitchen is used.
c)
How clean the kitchen is.
d)
The number of ants
19.
Ralph is concerned about the number of ants in his kitchen. He wonders if cleaning the kitchen once a day instead of once a month would fix the problem.
What is the manipulated variable?
What is the manipulated variable?
a)
How often the kitchen is cleaned.
b)
The number of ants in the kitchen.
c)
Ralph's concern.
d)
Cleaning the kitchen.
20.
What is happening at segment B?
a)
no motion/object at rest
b)
constant speed
c)
acceleration
21.
Alan travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
22.
Pick all of the following that are velocities.
a)
4 km/s west
b)
5 mph
c)
2 mph
d)
8 cm/year
e)
5 m/s up
100 %
