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Kaila Shepard
PhysicsPhysics
What factors affect the speed of a wave? Check all that apply.

the amplitude of the wave

the energy of the wave

the temperature of the medium

the type of wave

the type of medium
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Sebastian Cooper
PhysicsPhysics
A sound level of 96 dB is how many times as intense as one of 90 dB?
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Mateo Hines
PhysicsPhysics
Which type of waves are whale songs in an ocean?
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Mclean
PhysicsPhysics
Which is normally greater: static friction or sliding friction on the same object?

Static friction is normally greater than dynamic friction.

On the same object, static friction and dynamic friction are equal.

Static friction and dynamic friction are both zero.

Dynamic friction is normally greater than static friction.
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Regina Gates
PhysicsPhysics
A child pulls a wagon 3.0 m using a force of 55 N at an angle 35° above horizontal. The force of friction on the wagon is 12 N. Calculate the net work done on the wagon
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Bryson Thomas
PhysicsPhysics
Which of these accurately describes a chemical reaction

A. products and reactants combine to form new reactants.

B. Reactants combine to form products

C. Products and reactants combine to form new substances

D. Products combine to form reactants
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Taryn Combs
PhysicsPhysics
Why construction is present near the bulb
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Andrews
PhysicsPhysics
Water, with a density of rho = 1125 kg/m 3 rho=1125 kg/m3, flows in a horizontal pipe. In one segment of the pipe, the flow speed is v 1 = 6.53 m/s v1=6.53 m/s. In a second segment, the flow speed is v 2 = 1.17 m/s v2=1.17 m/s. What is the difference between the pressure in the second segment (P 2 P2) and the pressure in the first segment (P 1 P1) ?
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Keegan Tran
PhysicsPhysics
If you are standing on a weighing scale in an elevator what happens to your weight if the elevator accelerates up or accelerates down?

Are you going to weigh less, weigh more or the same?
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Emerson Newman
PhysicsPhysics
A student throws a coin vertically downward from the top of a building. The coin leaves the thrower'S hand with a speed of 15.0m/s. How far does it fall in 2.00 s?
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Haley Yates
PhysicsPhysics
A force between two objects?
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Blair
PhysicsPhysics
Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch. How did the heat travel from the heated rod to the one that was not heated?

A) The air over the heated rod traveled to the other rod and made it warm.

B) Part of the heat was converted to radiation and traveled to the cooler rod.

C) Electrons within the rods started moving, distributing heat consistently in both rods.

D) The molecular movement in the first rod transferred energy to the molecules in the second.
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Justin Montgomery
PhysicsPhysics
Which part of the motor is responsible for reversing the flow of current?
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Doll
PhysicsPhysics
In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what?

A) revolutions per minute

B) direct current

C) alternating current.

In contrast, the movement of electrons in one direction in a battery circuit is called what?

A) strength of current

B) direct current

C) alternating current.
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Mareli Vargas
PhysicsPhysics
A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How

long did it take the train to complete its journey?
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