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Physics

Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves.

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Q: What is a practical example of gravity acting on an object
12 answers
Q: What is the frequency of a wave with a velocity of 100ms and a wavelength of 20m
5 answers
Q: What is the name of an organized group cells that work together
3 answers
Q: The force needed to overcome static friction is usually less than that needed to overcome kinetic friction
3 answers
Q: When was internal combustion engine invented
2 answers
Q: Which factors must be known to calculate an object's gravitational potential energy
3 answers
Q: What is the half-life of a radioisotope if a 100 g sample becomes 50 g after 20 years
2 answers
Q: Which region of the Sun is the source for extreme ultraviolet light and x-ray emissions
1 answer
Q: In a wet type of voltaic cell what is electrolyte
1 answer
Q: Is acceleration is measured in meters per second per second
1 answer
Q: A worker applies a 200-n force to a create that he pushes 10m how much work was done
2 answers
Q: The total current that flows through a circuit is the same as the current that flows through each individual parallel sub-circuit
1 answer
Q: Can sound waves travail through gas liquid and solids true or false
3 answers
Q: How is the first law of thermodynamics related to the law of conservation of energy
1 answer
Q: What is biofuel energy
1 answer
Q: Is physics the branch of science that involves the study of physical phenomena in order to establish patterns
1 answer
Q: The phrase tem meters per second squared describes the
1 answer
Q: What is the definition of applied force
2 answers
Q: Which of the following produces electromanetic waves is it moving neuton
1 answer
Q: Is this statement true or false A shiny surface reflects less light than a matte surface
1 answer
Q: What is de broglie wavelength of one photon
1 answer
Q: Is strong nuclear force is strongest of all 4 fundamental forces
1 answer
Q: What is another name for a pure substance
1 answer
Q: Shiny malleable ductile and able to conduct electricity are qualities of .
1 answer
Q: Is it true that atoms are the smallest particles on the planet
1 answer
Q: The force of gravity on a projectile in motion is considered positive.
1 answer
Q: A fault has a shearing force.
1 answer
Q: What is the best example of stage direction
1 answer
Q: A transformer has 150 turns on the primary coil and is connected to a 120 volt power source How many turns will be needed on the secondary coil to provide a secondary voltage of 40 volts
2 answers
Q: The volume of the displaced water is equal to the volume of the portion of the object that's above the surface of the water
2 answers
Q: What causes sound waves to travel
1 answer
Q: What is frequency of a radio wave with a wavelength of 3 m
1 answer
Q: What is a hard magnet
1 answer
Q: Which type of electromagnetic radiation is used to send signals from a tv remote control
1 answer
Q: Does 160 ounces bigger than 8 pounds
1 answer
Q: What could be done to increase the mechanical advantage of an inclined plane
1 answer
Q: Is the classification for a solid instrument that produces sound when it is hit scraped or struck.
1 answer
Q: Is an object's net charge positive or negative if it loses electrons
1 answer
Q: Do comets come from the asteroid belt
1 answer
Q: What is one example of a lever is it a wedge or a wheelbarrow
1 answer
Q: For a fission reaction to fail to be maintained as a chain reaction each fission must produce less than additional fission reaction
1 answer
Q: A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff How high was the cliff
1 answer
Q: Motion may be defined as any push or pull.
1 answer
Q: The number of wavelengths that pass a fixed point each second is
1 answer
Q: What is Equipotential lines in electric field
1 answer
Q: Which of the suns layers releases visble light
1 answer
Q: What infroemation is needed to calculate the amount of energy needed to heat a volume of water to some temperature
1 answer
Q: Vector quantities are
1 answer
Q: What happens to a ray of light that slows down when it hits a new medium at an angle
1 answer
Q: What is an ideal gas
2 answers
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