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Physics
Page 78
Questions (146,323)
What happens to the temperature & thermal energy applied to an ice cube at 0° C? Mark all that apply.(2 points)
Responses
1 answer
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7. Which color has a longer wavelength?
* 1 point red green violet yellow
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ur mum
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The mass of a dust particle is approximately 7.5×10−10
kilograms and the mass of an electron is 9.1×10−31 kilograms. Which
1 answer
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The mass of a dust particle is approximately 7.5×10−10
kilograms and the mass of an electron is 9.1×10−31 kilograms. How
3 answers
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During halftime of a soccer game, a sling shot launches T-shirts at the crowd. A T-shirt is launched from a height of 4
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A model depicts two balloons of the same size with identical negative charges being moved toward one another at the same speed.
1 answer
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me
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The north and south poles of two magnets are attached to each other. A student pulls the poles apart and hold them at a distance
1 answer
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me
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What is the best description of heat?(1 point)
Responses the measure of the average kinetic energy of the particles in an object
1 answer
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A box is pushed with a force of 15 newtons. If the box moved 3 meters, how much work was done on the box?
1 answer
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If a force is applied to an object, but it ends up back in its original position, has work been done?
3 answers
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Which statement best describes the refraction of light as it moves from air to glass?(1 point)
Responses Although the light
7 answers
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When the string on a violin vibrates, waves move in both directions along the string, interfering with each other. Sometimes
9 answers
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As a wave travels from one spring to another spring with a different mass, its wavelength decreases by 25%. Which statement
3 answers
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If a wave transfers from one medium to another medium with different properties, which statement is true?(1 point)
Responses The
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Which example represents a class 2 lever
A.a screwdriver opening a paint can B.a car door being opened and shut C.tweezers
1 answer
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a) The Earth magnetic field on the equator is directed horizontally from South to North. A power line with the direct current
1 answer
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Number of Wire Coils (Independent Variable-Y)
15 #1 Number of Paper Clips for C Battery (Dependent variable-X) 2 #2 Number of
1 answer
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Non-Contact Forces Unit Test
3 of 133 of 13 Items Question Why is glass a good insulator?(1 point) Responses The atoms in glass
1 answer
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How is an electromagnetic field produced?(1 point)
Responses when a current runs through a conductor when a current runs through
1 answer
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Non-Contact Forces Unit Test
11 of 1311 of 13 Items Question Use the table to answer the question. Electromagnet Current
1 answer
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Use the table to answer the question.
Student Wavelength Frequency Darius increase increase Kathryn increase remain the same Anya
1 answer
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A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)
Responses by reducing the
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A ball is placed in a machine that throws the ball up in the air. The table represents some points on the graph of a function
1 answer
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Based on the tire experiment, will it take more, fewer, or the same rotations for a monster truck with 6ft (72 inches) tires to
1 answer
asked by
dabest
11 views
Two magnets are held apart. Once released, the south pole of one
magnet moves toward the north pole of another magnet until the
1 answer
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23 views
A magnet is moved close to a rubber band. How does the energy
stored in the magnetic field change? (1 point) The energy stored in
1 answer
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Divers who go to great depths in the ocean experience large differences in pressure between the surface and their final
1 answer
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iknj
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Use the claim to answer the question.
Claim: Electromagnetic radiation can be described by a wave model or a particle model,
9 answers
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Which action represents a transformation of chemical to kinetic energy?
1 answer
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Which statement best describes work?(1 point)
Responses Work is done whenever a force acts on an object. Work is done whenever a
1 answer
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You drop a tennis ball from a building, what Is the force acting on the tennis ball if it weighs 0.06 kg? Acceleration will be
1 answer
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Below is a picture of four animals and their common names. In the space below, write the name of the animal that would have the
5 answers
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13. Gravitational attraction is defined as "An attractive force between all objects with mass in our universe." Since humans
3 answers
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A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the Earth. What are these rays
1 answer
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What type of quantity is momentum?
Group of answer choices It is a scalar quantity because it involves magnitude only. It is a
5 answers
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Ilikecookies2009
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A group of students sets up an electric circuit with wires, a battery, and a light bulb. Why is their circuit called a direct
1 answer
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In which fundamental interaction can matter transform into a different type of matter
A) strong B) gravity C) weak nuclear force
1 answer
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Which of the following objects is most likely to have the greatest air resistance?
1 answer
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A group of students sets up an electric circuit with wires, a battery, and a light bulb. Why is their circuit called a direct
4 answers
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How do scientists support claims about different models of light?(1 point)
Responses They use reasoning to prove which model is
9 answers
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Nuclear reactions can be written out in equation form with information about the nuclei that take place in the fusion reaction
0 answers
asked by
hatemaths
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In 1–2 sentences, explain how to make an electromagnet.(2 points)
And write like a fourth grader
1 answer
asked by
u dont know me
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A feather and a bowling ball are in free fall when...
a gravity is the only force acting on them. b gravity and air resistance
1 answer
asked by
e
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In a nuclear reaction, which is the same before and after the change?(1 point)
Responses the types of atoms the types of atoms
1 answer
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Which option would be an appropriate model of nuclear fusion?(1 point)
Responses adding a drop of water to a glass of water
1 answer
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Which statement best describes the process of alpha decay?(1 point)
Responses An unstable nucleus rearranges its particles and
1 answer
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Which option correctly compares beta decay(a particle) and gamma decay (pure energy)?(1 point)
Responses Beta decay only reduces
1 answer
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Use the equation to answer the prompt.
106 C→ 105 B + 0+1 e A student claims that the equation models beta-minus decay because
3 answers
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Which statement best describes the process of alpha decay?(1 point)
Responses An unstable nucleus releases an electron. An
1 answer
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Use the image of a person lifting a boulder with a lever to answer the question.
An illustration shows a man using a stick and a
1 answer
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7 views
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