WorksheetsRandom Questions
Total questions: 75
Worksheet time: 6hrs 15mins
What should you do if you do not understand part of the lab instructions?
Ask your instructor for help
Skip that part of the lab
Ask your lab partner
Figure it out during the lab
Identify the dependent variable according to this graph.
Seed Type
Number of Bird Species
Sunflower and Sorghum
Sunflower
Which two units of volume are the same? (select all that apply)
cm3
L
cm2
mL
4,000 g = ____ kg
40
400
4
0.04
Convert to scientific notation:
750,000
75 x 107
7.5 x 10-7
7.5 x 108
7.5 x 105
Write 9.2 x 10-4 in standard notation.
0.00092
0.000000092
9,200,000,000
920,000
3 ⋅ 1046 ⋅ 108
2 ⋅ 103
2 ⋅ 104
36 ⋅ 103
0
(8 x 102) + (1 x 102)=
9 x 104
7 x 104
7 x 102
9 x 102
This bullseye demonstrates...
High Accuracy & High Precision
High Accuracy & Low Precision
Low Accuracy & High Precision
Low Accuracy & Low Precision
burning
Lemonade is
Element
Mixture
Compound
Why isn’t water on the Periodic Table?
because it is a liquid at room temperature
because it doesn't have any protons
because it is a compound
because it is not made up of elements
Of these three states of matter, which one has a medium amount of kinetic energy?
Why is a hot air balloon able to rise into the sky?
The hot air is less dense then the atmosphere, so it rises
The hot air is more dense then the atmosphere, so it rises
The hot air has the same density as the atmosphere, so it rises
Which of the substance below has a mass of 173.7 grams and a volume of 9 mL?
Density = Mass/Volume
John Dalton stated:
Atoms are tiny, invisible particles.
Atoms of one element are all the same.
Atoms of different elements are different.
Compounds form by combining atoms.
All of the statements listed.
What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?
Ernest Rutherford, JJ Thomson, John Dalton, & Democritus
JJ Thomson, John Dalton, Ernest Rutherford, & Democritus
Democritus, John Dalton, JJ Thomson, Ernest Rutherford.
John Dalton, JJ Thomson, Democritus, & Ernest Rutherford
Look at the picture of Argon from the periodic table. Which of the following is true for this element?
18 protons
40 protons
39.948 protons
21.9 protons
Electrons orbit a certain distance from the nucleus. Either radiate or absorb energy when jumping orbitals.
Dalton
Thomson
Rutherford
Bohr
In a famous experiment conducted by Ernest Rutherford, positively charged alpha particles were scattered by a thin gold foil. Which of the following is a conclusion that resulted from this experiment?
The nucleus is negatively charged
The atom is a dense solid and is indivisible
The mass is conserved when atoms react chemically
The nucleus is very small and the atom is mostly empty space
Believed that atoms are small, hard particles that were "indivisible" called "atomos".
What were J. J. Thomson's three contributions to the atomic theory?
Discovered the electron
Discovered the nucleus -did the gold foil experiment
Used the cathode ray tube in his discovery
Created a model of the atom with electrons moving around the nucleus in fixed orbits
Created the "plum pudding" model of the atom
What are the vertical columns on the periodic called?
groups
periods
nonmetals
metals
metalloids
What is the name of the element?
sodium
magnesium
vanadium
How many valence electrons does the element have?
1
2
3
4
The Periodic Table of Elements is arranged by
Very little/none of the mass of an atom is found in its _____.
protons
The periodic table is mostly comprised of what type of element?
Metals
Nonmetals
Metalloids
Which elements are colored red?
nonmetals
metals
metalloids
dull
Elements in the same group or family have _____________.
the same number of valence electrons and different properties.
the same number of valence electrons and similar properties
different number of valence electrons and similar properties.
different number of valence electrons and different properties.
What is the name of the elements that are unreactive and have a full octet?
Halogens
Noble Gases
Alkali Metals
Transition Metals
Agium
Silver
Neon
Fluorine
What is the force that opposes the motion of objects sliding against each other?
Attraction
Friction
Slipperiness
Resistance
What is the acceleration of an object if its velocity is decreasing?
0 m/s^2
-6 m/s^2
4 m/s^2
9.8 m/s^2
Which type of friction is shown in the picture?
rolling
static
fluid
sliding
What can reduce friction?
Adding more weight
Adding a lubricant
Using a rough material/surface
Increasing the surface area
A person starts pushing a stalled car from rest. What type of friction must he/she overcome in order to start the car moving?
A roller coasters accelerates from an initial velocity of 10.0 m/s to a final velocity of 60 m/s over 2 seconds. What's the acceleration?
25 m/s2
35 m/s2
30 m/s2
What is required for an object to begin moving from rest?
A balanced force
An unbalanced force
No force
A decrease in mass
What is acceleration due to gravity on Earth?
98 m/s2
9.8 m/s2
0.98 m/s2
Which of these dot diagrams represents a free falling object dropped from rest?
A
B
C
D
Abby is driving at a speed of 30 km/hr over a distance of 300 km. How long will it take her?
300 hr
0.1 hr
10 hr
900 hr
A runner races in the 100 meter dash. It takes her 20 seconds to finish. What is her average speed?
10 m/s
5 m/s
200 m/s
10 seconds
Using the graph provided, how long did it take a ball to roll 10 cm? What was the average speed of the ball?
20 seconds, 1 cm/s
10 seconds, 1 cm/s
15 seconds, 1 cm/s
A bus carrying Ava's friends to a soccer game traveled 10 km in 15 minutes. What was the average speed of the bus in km/hr?
150 km/hr
40 km/hr
Which graph represents the greatest acceleration?
Which section of the graph shows acceleration?
DE
GH
According to the graph how far does the person travel in the first 2 seconds?
Jennifer stands on one side of a table and pushes with a force of 50 N towards Sam. If Sam wants to help Jennifer demonstrate balanced forces, what does he need to do?
push with a force of 50 N toward Jennifer
push with a force of 100 N toward Jennifer
push with a force of 50 N in the same direction as Jennifer
push with a force of 100 N in the same direction as Jennifer
Which block has the greatest net force on it?
Block 1
Block 2
Block 3
Block 4
If the man pushes with an equal amount of force, which object will accelerate more?
Car because it has more mass
Lawnmower because it has less mass
Car because it has less mass
Lawnmower because it has more mass
A 20-kg crate is being pushed across a floor with a force of sliding friction of 20 N. If the pushing force is also 20 N, what is the acceleration of the crate?
0 m/s2
2 m/s2
0.5 m/s2
40 m/s2
A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?
What would the strength of gravity be for this planet?
7 N/kg
0.2 N/kg
0.5 N/kg
5 N/kg
Which rocket component provides thrust?
engine
nose cone
launch lug
fin
What is the function of the nose cone?
to hold the nose cone to the body tube
provides thrust
provides stability
increases drag
reduces drag
The force supplied by the rocket engine must be strong enough to overcome...
Gravity
Weight
Thrust
How does Newton's third law explain how a rocket will take off?
The rocket doesn't move until ignition
The more mass the rocket has the more force is needs to take off
Gas pushes down, the rocket goes up.
Explain how Newton's second law affects a rocket:
A rocket stays at rest until ignition
Gas pushes down, the rocket goes up
The more mass the rocket has the more force it needs to take off
A rocket is launched into space going 1000m in 20s. What is the velocity of the rocket?
The velocity of the rocket is 50m/s going down.
The velocity of the rocket is 500m/s going up.
The velocity of the rocket is 50m/s going up.
The velocity of the rocket is 50mi/hr going up.
Rockets have nose cones becase
They look cool
They help reduce drag
They help reduce gravity
They hold the payloads of rockets
When the rocket launches, the water inside the rocket applies a force downward to the launchpad, and the the launchpad applies a force upward to the...
air
grass
rocket
string
A rocket will remain on the launch pad until an unbalanced force is exerted on the rocket, propelling it upward.
True
False
The altitude of a rocket is the dependent variable, on which axis would this variable be graphed?
X-axis
Y-axis
What is aerodynamics?
How loud the rocket is when it launches
The study of rocket science
How high the rocket goes during flight
The study of how objects move through the air
If an engineer is testing a new product and notices that it does not always perform well, the engineer should
Quit, because only bad engineers have product ideas
Ignore the test results and continue to the next step of the Design Process
Go back and change the design, then test the product again
