Unit 6: Solutions
Unit 7: Energy
Unit 8: Force & Motion
Unit 9: Waves
Unit 10: Electricity and Magnetism
100
When you mix salt into water it completely dissolves to produce a solution. Salt, the dissolved substance in the solution is the (solute or solvent?)
Solute
100
What type of energy change occurs as a match burns?
Chemical energy changes to light and heat energy
100
Why is the force of gravity on Earth stronger than the Moon?
The Earth has more mass
100
Why is lightning visible before thunder is heard?
Because sound travels slower than light can travel
100
Which statement BEST describes the direction electrons will flow out from a battery when it is connected to a working circuit?
Electrons are negatively charged, so they will flow out the negative terminal.
200
What are the 3 variables that affect the solubility of a solid?
stirring, increasing surface area, and increasing temperature
200
If the same amount of heat is added to samples of each of the metals below, which metal will experience the largest temperature change?
Au because it has the lowest specific heat
200
If a large force is exerted on an object, when is no work performed?
When the object does not move
200
Which phenomenon is represented below?
Diffraction
200
What is the effect on the current in a simple circuit when both the voltage and the resistance are halved?
It does not change.
300
What is a soil with a pH of 5.5 considered? Acidic, basic, or neutral?
Acidic
300
Which point on the diagram corresponds to conditions in which the solid and gas phases are in equilibrium (which point is on the line in between solid and gas)?
D
300
What does the graph indicate about the object?
It is slowing down
300
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.
300
What two factors increase the magnetic field in a solenoid?
Increase current and number of coils
400
Bubbles rise in a newly opened bottle of a carbonated beverage. This action is explained by the fact that carbon dioxide is less soluble in water under what conditions?
When pressure is reduced
400
When a system transforms energy from one type to another, the system always experiences_____
Energy loss through heat
400
What is the mechanical advantage of the tab?
15/5= 3
400
What is the frequency of the Waves 1 and 2 and which one has more energy?
Waves 1 and 2 have the same frequency, 4 Hz, but Wave 2 has the highest energy because it has a higher amplitude
400
What is a disadvantage of a series circuit?
If one section of the circuit fails, the whole circuit fails.
500
Which best describes the solution at point C
Unsaturated
500
According to the diagram, what happens to temperature during a phase change
It remains the same
500
How much time is required for an object moving 4.5 m/s to travel 65 m?
14.4 seconds
500
If the source were to accelerate, what would happen to the wavelength of the waves nearest to point A?
They would decrease only
500
A 4.0-ohm resistor has 3.5 amperes passing through it. What is the voltage difference in the circuit?
14 V