Master Physics with Fun Quizzes & Brain Teasers!

A helicopter takes off from the ground and rises vertically. It then hovers at a constant height above the ground. Which sequence of energy changes takes place during the gain in height?
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How Buoyancy force on an object is related to the weight of liquid it displaces?
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3. Let the pen return to its vertical position and suddenly pull the thread.Q4. What happened to the thread tied on the pen?
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the state of matter that has low thermal expansion
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A train starts from rest. It acquires a speed of 25 m/s after 20 s. The total distance is
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An unbalanced force of 23 N is applied to a 13 kg mass. What is the acceleration of themass?
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Who is the founder of microscope?
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A boy and a girl are pulling a heavy crate at the same time with 7 units of firce each. What is the net force acts on the ibject? Is the object balanced or unbalanced?
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A car is pushed and travels 12 m. The same car is then pushed and it travels 15m. Whatcould have happened? Select 2 answers.The mass was decreasedThe force was increasedThe force was decreasedThe mass was increased
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A shot-putter exerts an unbalanced force of 128 N on a shot giving it an acceleration of 19m/s2. What is the mass of the shot?
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With what force will a car hit a tree if the car has a mass of 3,415 kg and it is accelerating ata rate of 5 m/s2?
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Determine the acceleration that an unbalanced force of 28 N gives to a 6.8 kg mass.
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What will be the velocity of a train if it covers the distance of 30m in 3 s?
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10- The voltage across the generator ofthe circuit of figure 13 is 12V andthe voltmeter V2 indicates 8V:N.VL1L2BLFig.13a- What would the voltmeter V3 indicate?Justify the answerb- What would the voltmeter Vi indicate?Justify the answer
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An atom of an element has 8 protons and 9 neutrons in it's nucleus. What is the name of the element?
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A large bottle contains a number of medicinal tablets each having a mass of 250mg. The mass of all the tablets is 1 kg. Calculate the number of tablets in the bottle.
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The density of the Earth is greater than the density of an equal volume of water by _____.5 times3 times1 times7 times
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A gas is compressed to 75cm3 to a volume of 30cm3. Its temperature remains the same The pressure of the gas after it has been compressed is 110 Pa. What was the pressure before it was compressed?
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Describe the stratosphere.What happens to the air pressure when you get closer to Earth?What are the layers of the atmosphere?
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1) Construct a graph showing the relationship between and independent variable and a dependent variable. 2) Demonstrate potential and kinetic energy. 3) Design a pendulum. 4) Investigate which variables influence the period of a pendulum. 5) Solve a problem using the scientific method. 6) Use graphs to characterize gow drop height responds to bounce height. (Next answer questions 1 - 6). 1) Write the goal of the lab or the question you tried to answer? 2) which observations, experiences, or lesson materials helped you form a hypothesis? 3) State your hypothesis? 4) Use the data from your experiment to complete these data tables? [Data Table 1: Period vs. Mass] Mass(g) / Time for 10 periods (s). [ Data Table 2: Period vs. String Length] String Length (cm) / Time for 10 periods (s). ( Question 5) Graph your data: A) Determine the values in seconds (s) for the y-axis based on your time data. B) Plot mass vs. time for 10 periods on the first graph. C) Plot string length vs. time for 10 periods on the second graph. ( question 6) Compare your data with your hypothesis. Explain how the data supports or does not support your hypothesis. If your data does not support your hypothesis, use the data you collected to answer the original question. { Truly Need Help and will mark brainlest} Please Please be very honest with your response.
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What layer of atmosphere does planes fly?
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What is the density of this liquid that has a mass of 300g and volume 600ml.
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At highway speeds, a particular car is capable of an acceleration of about 1.6 m/s?. At this rate,does it take the car to speed up from 80 km/hr to 110 km/hr? Round your answer toTwo significant figures
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Which of these chemical properties of a sheet of paper
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