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- 1. Multiple Choice
The diagram below shows three identical blocks arranged in three different ways on the same surface. In each arrangement, a horizontal force is applied so that it is just enough to move the blocks very slowly across the surface. In which arrangement is the force required to just barely move the blocks the greatest?
X
Y
Z
The force required is the same for all three arrangements.
- 2. Multiple Choice
What kind of waves are sound waves?
surface waves
longitudinal waves
transverse waves
parallel waves
- 3. Multiple Choice
What do waves transfer?
matter
particles
energy
water
- 4. Multiple Choice
The diagram shows the identification of two types of waves.
Which question, represented by X on the diagram, helps to identify the type of wave?
Do the particles transfer energy?
Does the wave have an amplitude?
Does the wave require a medium to travel?
Do the particles travel perpendicular to the wave?
- 5. Multiple Choice
Which property of a sound wave determines the pitch of a musical note?
its length
its frequency
its amplitude
its rest position
- 6. Multiple Choice
Several students were playing baseball outside. Nate wore a white shirt, Christina wore a black shirt, Autumn wore a yellow shirt, and Tristan wore a pink shirt. Who will be the most likely to get hot first?
Nate
Christina
Autumn
Tristan
- 7. Multiple Choice
The diagram below shows four waves. Which two waves have the SAME amplitude?
W and Y
Z and X
Y and X
W and X
- 8. Multiple Choice
The picture below shows a diagram of light rays as they travel through a type of telescope. What happens to the light at point X?
The light hits a mirror and is absorbed, and then it is emitted at a different wavelength.
The light hits a mirror and scatters into multiple beams of different colors.
The light hits a lens and reflects at the same angle it hit the lens.
The light hits a lens and refracts, changing the angle of the light.
- 9. Multiple Choice
The diagram below represents a transverse wave moving along the surface of a lake in the direction indicated by the velocity vector v. At the instant shown, a cork at point P on the lake's surface is moving toward which point?
A
B
C
D
- 10. Multiple Choice
Two new planets are discovered, planet X and planet Y. The planets have identical volumes, but the mass of planet X is two times greater than the mass of planet Y. If two identical space ships land on each planet, which of the following will be true?
The mass of the space ship on planet Y will be greater than the mass of the space ship on planet X.
The weight of the space ship on planet Y will be greater than the weight of the space ship on planet X.
The mass of the space ship on planet X will be greater than the mass of the space ship on planet Y.
The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y.
- 11. Multiple Choice
A student claims that a magnetic field can affect objects that are not in direct contact with each other. Which argument best supports the students claim?
A ball rolls downhill and eventually comes to a stop.
A light bulb becomes hot to the touch after being lit.
A compass needle points to the north from any location.
A lighting bolt releases a charge from the sky to the ground.
- 12. Multiple Choice
Which compass needle orientation in the figure above might correctly describe the magnet's field at that point?
A
B
C
D
- 13. Multiple Choice
The diagram represents a copper sphere that is positively charged. Which of the arrows best represents the direction of the electric field?
A
B
C
D
- 14. Multiple Choice
A student wants to build a simple compass that shows the magnetism of Earth. Which of the following would be the best way to build a compass?
placing a large magnet on a plank of wood
placing a small bar magnet on a level surface
placing a magnetized rock in a bucket of salt water
placing a magnetized needle on a leaf floating in water
- 15. Multiple Choice
Which type of electromagnetic core will create the strongest magnetic field?
another magnet
a wooden pencil
an iron nail
a glass rod
- 16. Multiple Choice
Ahmad made a very simple electromagnet out of a nail, copper wire, and a AAA-sized battery. His magnet was able to lift one paper clip from 2 centimeters away. Which of the following is NOT a way Ahmad can improve the strength of his electromagnet?
He can reverse the orientation of his battery.
He can use a thicker piece of the copper wire.
He can increase the size and voltage of his battery.
He can use longer wire for more coils around the nail.
- 17. Multiple Choice
Kayla has two magnets. She would like to know how much magnetic energy is stored in each one. What would be the best way for her to determine which magnet has the most magnetic energy?
Attach wires to the ends of each magnet and measure the currents going through the wires.
Put each magnet into a beaker of water to see how much water it displaces.
Measure how close each magnet can get to a metal object before picking it up.
Record the mass of each magnet by measuring it on a balance scale.
- 18. Multiple Choice
What kind of force can be created with an electrical current?
chemical
magnetic
nuclear
frictional
- 19. Multiple Choice
Which of the following events is caused by magnetic force?
A person gets a shock from a doorknob after walking across carpet.
Pieces of clothing stick together after being in a clothes dryer.
The needle of a compass points toward Earth's North Pole.
Objects are constantly pulled toward the center of Earth.
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