Unit 1/2
Unit 3
Unit 4/5
Unit 6
Unit 7
100
This is the periodic table of elements.
The periodic table was created to show elements that have similar properties. How are elements that form ions with the same charge organized?
They are located in the same group.
100
What is a benefit of using nuclear energy as an alternative energy source?
A. Nuclear power does not create extra heat as energy is being generated.
B. Nuclear power plants do not pose any risks to the communities they serve.
C. Nuclear power plants are more inexpensive to build than other power plants.
D. Nuclear power releases less greenhouse gases than most other energy sources.
D. Nuclear power releases less greenhouse gases than most other energy sources.
100
The picture shows a turbine that is used to make electricity. The blades of the turbine spin, and the energy is transformed into electrical energy.
Which source of energy helps the turbine make electricity?
kinetic energy from the wind
100
Why is the force of gravity on Earth stronger than on the Moon?
Earth has more mass.
100
Which term BEST describes the ratio of the potential difference to the current in a conductor?
A. resistance
B. charge
C. conductivity
D. power
A. resistance
200
Which of the following BEST explains why salt water helped conduct electricity?
A. Salt is a strong electrolyte and when dissolved in water, the sodium and chlorine ions bond with water molecules to produce electricity.
B. Salt is a strong electrolyte and when dissolved in water, the sodium and chlorine ions are separated and carry electricity through the water.
C. Salt is a weak electrolyte and when dissolved in water, the sodium and chlorine ions bond with water molecules to produce electricity.
D. Salt is a weak electrolyte and when dissolved in water, the sodium and chlorine ions are separated and carry electricity through the water.
B. Salt is a strong electrolyte and when dissolved in water, the sodium and chlorine ions are separated and carry electricity through the water.
200
Which of the following describes a relationship between an atomic property and nuclear power generation?
A. Atoms such as the uranium-235 isotope absorb energy when they are split into smaller atoms.
B. Atoms such as the uranium-235 isotope can bond with other atoms to form larger molecules, releasing energy in the process.
C. Atoms such as the uranium-235 isotope can bond with other atoms to form larger molecules, absorbing energy in the process.
D. Atoms such as the uranium-235 isotope release energy when they are split into smaller atoms.
D. Atoms such as the uranium-235 isotope release energy when they are split into smaller atoms.
200
Two pulses are sent through a rope.
Which type of interference will occur when the pulses meet?
constructive interference
200
What force, in newtons, is required to keep the object in the picture below at rest?
12 N
200
Three light bulbs are connected in a series, as shown in the diagram.
After the circuit is completed, the middle light bulb breaks. What will happen to the remaining light bulbs?
Both of the remaining light bulbs will go out.
300
A student sets up an experiment to test the factors that affect the solubility of sodium chloride. The student places 5.0g of sodium chloride in four beakers containing 250 mL of water. The student places each beaker on a different hot plate and heats them to the following temperatures:
Beaker A: 30°C
Beaker B: 40°C
Beaker C: 50°C
Beaker D: 60°C
In which beaker would the sodium chloride dissolve at the fastest rate?
Beaker D
300
The equation below is unbalanced.
What are the missing coefficients needed to make this equation balanced from left to right?
2, 4, 3
300
The phase change diagram for water is shown below.
Which best explains why the temperature is NOT increasing between lines AB and CD?
A. Temperature must be held steady while changing from one phase to another.
B. Temperature does not affect the amount of energy needed for a phase change.
C. The energy that causes the temperature to increase is absorbed by the molecules during a phase change.
D. There is so much energy required by the molecules during a phase change that the temperature remains the same.
C. The energy that causes the temperature to increase is absorbed by the molecules during a phase change.
300
A lever is used to remove a rock from the ground. Which lever shown below has the greatest mechanical advantage?
A.
B.
C.
D.
B.
300
A student is planning an experiment using a nail, wire, and a battery to investigate the factors that affect and do not affect the strength of an electromagnet. Which factor would NOT affect the strength of the electromagnet?
A. the kind of metal used for the nail in the electromagnet
B. the amount of current flowing through the electromagnet
C. the number of coils of wire used in the electromagnet
D. the direction of the current flowing through the electromagnet
D. the direction of the current flowing through the electromagnet
400
A solubility chart is shown below.
How much KNO3 can be dissolved in 100 cm3 of water at 35°C?
55g
400
The equation shows the reaction between ammonia (NH3) and oxygen (O2).
__NH3 + __O2 → __NO + __H2O
From left to right, which set of coefficients balances the equation to follow the law of conservation of mass?
4, 5, 4, 6
400
The picture shows the sound waves coming from the siren of a moving ambulance.
Lizbeth hears the siren as the ambulance is coming toward her, and Ricardo hears the siren as the ambulance is driving away from him. How would the pitch of the siren most likely differ for Lizbeth and Ricardo if the ambulance increases speed?
Lizbeth would hear a siren with an increased pitch, whereas Ricardo would hear a siren with a decreased pitch.
400
Three unbalanced forces were applied to two blocks, A and B. The graphs show the force applied and the acceleration of the each block.
Which best describes the the masses of block A and block B?
A. Block A has half as much mass as block B.
B. Block A has twice as much mass as block B.
C. Block A has a quarter as much mass as block B.
D. Block A has four times as much mass as block B.
A. Block A has half as much mass as block B.
400
The diagram shows four different circuits.
Which circuit will stop producing light if one bulb burns out?
Circuit 3
500
Universal indicator solution contains a mixture of molecules that produce a color change in the presence of H+ and OH– ions. Scientists use it to determine the approximate pH of an unknown solution. Examine the chart below to see the range of pH levels detected by universal indicator solution and their corresponding colors:
A nutritionist wants to determine how eating foods together affects stomach pH together. She places ten drops of fresh potato juice in a beaker containing universal indicator solution. The solution turns a yellow color. She then adds ten drops of white vinegar, which is a solution of acetic acid.
Using the universal indicator color chart above, combined with knowledge of acid-base chemistry, choose the response that correctly identifies the MOST LIKELY color the universal indicator will produce when an experimenter adds vinegar to potato juice.
The solution would turn red.
500
The graphic represents a nuclear reaction.
Which best describes this type of reaction?
fission because the reaction formed lighter nuclei
500
A student conducts an experiment that involves the transfer of energy. The student places one metal spoon, one plastic spoon, and one wooden spoon in a glass that contains hot water. A small pat of butter is placed onto each spoon.
The pat of butter on the metal spoon is the first to melt and slide down the spoon. Which of the following descriptions BEST explains the results of this experiment?
A. The metal material has a rigid structure with little molecular movement, allowing heat to transfer directly from one end of the spoon to the other.
B. The metal material is made up of well-spaced molecules, allowing the heat to travel through the air pockets and reach the butter the fastest.
C. The metal material transfers energy from molecular collisions up the length of the spoon the fastest, allowing the heat to reach the butter the fastest.
D. The metal material condenses steam quickly, allowing the heat from the steam to warm both the metal spoon and the butter on it the fastest.
C. The metal material transfers energy from molecular collisions up the length of the spoon the fastest, allowing the heat to reach the butter the fastest.
500
The graph represents the motion of a moving car.
At which point in the car's motion is the magnitude of its acceleration the largest?
4
500
The relationship between voltage (V), current (I), and resistance (R) is shown in the equation.V= IR Which of the following graphs BEST represents the relationship between current and voltage when the resistance remains constant?
A.
B.
C.
D.
A.
Current will be in direct proportion to the voltage given a constant resistance.