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Physics

Uncover the laws that govern the universe, from the smallest particles to the vastness of space. Physics seeks to explain the fundamental mechanisms of the natural world.

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Questions
Q: Is lifting weight kinetic or potential energy
2 answers
Q: How do employers decrease the amount of work they must do to find a potential
2 answers
Q: Five pit traps will be set at each location and left in place for three days. What is the dependent variable in this experiment
1 answer
Q: What is streamlining and why it is required
1 answer
Q: What amplitudes of sound can humans hear
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Q: What is emitted from the nucleus during beta decay
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Q: Does a pencil conduct heat
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Q: Is graphite a conductor or an insulator of electricity
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Q: A human cannonball with a mass of 80kg is fired out of a cannon with a force of 2400n. What is the acceleration
1 answer
Q: If you grease a ramp to make a box slide more easily the ramp and mechanical advantage increases because has been reduced.
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Q: Besides a reduction in friction the only way to increase the amount of work output of a machine is to the work input
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Q: If you have to apply 40 N of force on a crowbar to lift a rock that weights 400 N what is the actual mechanical advantage of the crowbar
4 answers
Q: What is the term that describe a work of art when it closely resembles a real-life object
2 answers
Q: For a machine the input force is 30 N and the input distance is 2 m. Factoring in the effect of friction what must be true about the work output
1 answer
Q: What is the Second law of service
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Q: What is mean for pakki
1 answer
Q: If an object's mass is 200 grams what is the weight of this object
1 answer
Q: How KCL is applicable for a closed surface
1 answer
Q: What is derived rate
1 answer
Q: Is a mirror a conductor or a insulater
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Q: What happens to how much space the water fills when it changes into water vapor
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Q: Does light transmit when it hits cellophane
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Q: Does light reflect when it hits aluminum foil
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Q: How many are in 1 pound
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Q: What are three things that can be caused by an unbalanced force
1 answer
Q: Ivan wants to build an electromagnet. What three materials will Ivan need
1 answer
Q: What is the distance or height of the vibration of a wave
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Q: When a wave is bent at an angle as it passes through a new medium it is called what
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Q: Describe how the electric resistance of a wire changes as the wire becomes longer. How does the resistance change as the wire becomes thicker
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Q: Electromagnets are the result of
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Q: What energy cannot be used
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Q: What is the energy of charged particles of matter
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Q: Suppose you are holding a basketball while standing still on a skateboard. You and the skateboard have a mass of 50 kg. You throw the basketball with a force of 10 N. What is your acceleration before
2 answers
Q: How did the type of ball affect your results and why
1 answer
Q: How strong does a chair need to be
1 answer
Q: What part of an atomis trasferred to provide static charge
1 answer
Q: What are 3 things that happen to light when it strikes a surface
1 answer
Q: Does a resting object have momentum
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Q: Do all objects fall toward the center of the earth
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Q: A worker with spikes on his shoes applies a constant horizontal force of 20 N to push a 40-kg box across a frictionless frozen lake. What is the acceleration of the box
1 answer
Q: Mechanical energy can change to non-mechanical energy as a result of
1 answer
Q: In a jet engine what is sucked into the front of a compresser where what is injected into the high pressure air is injected and is pushed out of what
1 answer
Q: Regan has an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If she collected all of the pieces of the cup how much mass would all of the
1 answer
Q: Velocity indicates how long it takes to get from one place to another.
2 answers
Q: When you put a negatively charged object near a neutral object what will it do
1 answer
Q: What aspect of sound needs to be altered to remedy the situation if you are seated in the back of a large auditorium and you cannot hear the speaker in the front
2 answers
Q: Shifting a frame of reference refers to
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Q: Which of the following must be true about a photon with more energy A) it must have a lower frequency B) it must have a higher frequency C) it must have a greater Planck's constant D) it must have a s
2 answers
Q: The waves in the electromagnetic spectrum are gamma waves.
2 answers
Q: The fact that money must withstand the wear and tear that comes from being used over and over again is a measure of its .
2 answers
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