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Reese Archer
What happens to the motion of an object when the forces acting on it are balanced? A. The motion changes. B. The motion does not change. C. The motion speeds up. D. The motion slows down.
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Harper Kim
An object with a temperature of 0 Kelvin would not emit radiation.

a. True

b. False
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Carlee Rush
When a bar magnet is broken into two pieces each piece has a north and south pole because

a

the magnetic fields reversed

b

every magnet is made of many aligned smaller magnets

с

bar magnets are permanent magnets

d

the magnetic poles have been isolated
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Macey Mckay
A box is being pulled to the right. What is the direction of the gravitational force?
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Quintin Powell
An electron, starting from rest and moving with a constant acceleration, travels 2.0 cm in 5.0 ms. What is the magnitude of this acceleration?
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Vance Harmon
Which equation correctly relates kinetic energy, mass, and velocity?

Which of the following is an example of kinetic energy?

a boy resting on a park bench

a book sitting on a shelf

a rubber band stretched as far as it can go

a swing moving back and forth
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Shayna Simmons
2. An 800-g bird has 47.0 J of gravitational potential

energy when it is perched high up in a tree.

Calculate the bird's vertical height from the ground.
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Javion Walter
When light passes from one medium to another, resulting in a change in speed and direction of insolation,?
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German Huang
A baseball that is falling towards earth has?
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Rihanna
How does the energy possessed by a ball bearing change as it travels along an incline ramp?
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Layton
What type of current is produced by a battery?

a. parallel current

b. alternating current

c. direct current

d. potential current
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Villanueva
How does Newton's 3rd Law of Motion account for the lift of an airplane wing?

A) The shape of the wing lowers gravity on the plane.

B) The shape of the wing increases the density of the air, so it is heavier than the wing.

C) The air follows the curve of the wing and is thrown downward.

D) There is less pressure on top of the wing than there is below the wing.
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Janiah Haynes
When an object falls, it trades gravitational potential energy for kinetic energy, accelerating toward the ground. calculate the potential energy change an object of mass m would experience falling from a height h. if there were no air friction, so that all of the energy was converted to kinetic energy, what would its final velocity be in terms of g and h?
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Gina
A spaceship moves radially away from Earth with acceleration 38 m/s2. How long does it take for the sodium streetlamps (λ ≌ 589 nm) on Earth to be invisible (with a powerful telescope) to the human eye of the astronauts? The range of visible wavelengths is about 400-700 nm.
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Watson
Moira is drawing the electric field lines around a pair of charges. One charge is positive, and the other charge is negative.
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