Master Physics with Fun Quizzes & Brain Teasers!

Which person has the most kinetic energy?O A. A person sitting in a chairOB. A person sitting at the top of a slideO C. A person riding a bicycleO D. A person walking
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For a substance to change from a liquid to a solid, what must happen to itsparticles?O A. They must lose enough of their kinetic energy that their movementis influenced by the attractions between them.B. They must gain enough kinetic energy to allow them to movefreely while still being attracted to one another.C. They must lose enough of their kinetic energy so that theattractions between them hold in place as they vibrate.D. They must gain enough kinetic energy to break out of their rigidstructure and move independently.
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Which form of friction produces the least amount of force?rolling frictionsliding frictionfluid frictionstatic friction
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need help ASAP. please and thank you
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What is the potential energy of a 2 kg plant that is on a windowsill 1.3 m high
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If an IPS student weighs 115 lbs on Earth, what is their weight in Newtons?
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Explain how an object that is more dense than water can be kept afloat by placing it on an object that is less dense than water. (You can change the fluid by moving this triangle)
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Newton's law of universal gravitation can be applied toonly to very massive objectsto any two objects with massonly to objects near Earth's surfaceonly objects in outer space
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What unit is force always in?PoundsKilogramsMetersNewtons
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Which scenario is an example of the transfer of thermal energy byconvection?A. A person uses a hot iron to remove wrinkles from a shirt.B. You warm your feet in front of a fireplace.C. A cup heats up when you pour hot water into it.D. Warm air in a hot air balloon rises and heats air at the top of theballoon.
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An astronaut weighs 760. N on Earth, what is his mass in kg?
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1. Given a list of atomic model descriptions:A: electron shells outside a central nucleusB: hard, indivisible sphereC: mostly empty spaceWhich list of atomic model descriptions representsthe order of historical development from the earliestto most recent?A) A, B, CBA, C, BCB, C, A D) B, A, C
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The convection currents in the asthenosphere cause the movement of the
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what are 3 sources of heat inside earth?
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Two trains are on separate but parallel tracks running east and west. One has a speed of 90 km/h, the other 80 km/h. Initially, the trains are 5 km apart and are approaching each other. How long will it take the two trains to have the same position along the east-west direction?
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what is Newton's second law?F=mXaa=F/mm=F/aAll of the above
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Relate the buoyant force to increased depth
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Why do mass numbers have a trailing decimal? use the following words describe for credit isotopes protons neutrons electrons in carbon 13 HELP ME
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a high speed train travels with an average speed of 250 km/h. the train travels for 2 hrs. how far does the train travel
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Which of the cars has a displacement North of its initial position?A car travels North for 5 miles, turns around and returns to the starting position.A car travels North for 5 miles, turns around and returns to the starting position.A car travels South for 5 miles, turns around and returns to the starting position.A car travels South for 5 miles, turns around and returns to the starting position.A car travels North for 5 miles, turns around and travels South for 8 miles.A car travels North for 5 miles, turns around and travels South for 8 miles.A car travels South for 5 miles, turns around and travels North for 8 miles.
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HELP PLEASE A cyclist and his bicycle have a combined mass of 88 kg anda combined weight of 862.4 N. The cyclist accelerates at 1.2m/s2. After 2 seconds he reaches a speed of 2.4 m/s. What ishis momentum at this point?A. 359.3 kg.m/sB. 105.6 kg.m/sC. 211.2 kg-m/sO D. 36.7 kg-m/s
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When you are standing in a subway train and the train suddenly stops but your body continues to move forward. Which one of Newton's laws is this?1st law2nd law3rd law4th law
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A boy is going down a slide. As he reaches the bottom, friction causes him to slow down and stop. Which one of Newton's laws is this?2nd law3rd law1st law4th law
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True or False: Heavy elements such as Carbon and Nitrogen, that are necessary for life were created in the BigBang and have been around in the Universe since that time.
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