Questions and answers by

kali

Questions (608)

A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?a combustion b conduction c
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Chemical energy from gasoline is transformed in vehicles to multiple types of energy like kinetic, heat, and sound.True False
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Magnetic fields run from ______________________ to ______________________.a south, north b east, west c north, south d west,
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What is the main type of energy conversion taking place?a Thermal energy is converted to mechanical energy as the energy from
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What will happen with the magnets below?a they will repel b they will attract c nothing will happen d not enough information to
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Which of the following has the greatest potential energy?a a 15 kg cat at underneath the tree b a 5 kg squirrel in the middle of
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How do simple machines make work easier?a by reducing the amount of force required b by reducing the amount of energy required c
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What is an example of chemical energy transforming to mechanical energy?a switching on a lightbulb b tea kettle heating up on
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Match the scenario and/or example to the type of energy being describedColumn A 1. sunlight: d sunlight 2. pulling a wagon: e
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Match the scenario and/or example to the type of energy being describedColumn A 1. sunlight: sunlight 2. pulling a wagon:
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What is the unit used to denote energy?a Newton b Joule c Coulomb d Watt
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A car transforms chemical energy into _____________________________ energy.a radiative b potential c mechanical d kinetic
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The Law of Conservation of Energy states that energy cannot be created or destroy. It can only be ________________________ from
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What are materials that are poor conductors of thermal energy called?Shivering GIFs | Tenor a conductors b kinetic modulators c
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Glass and ________________ can be considered insulators.a rubber b air c copper d silk
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Metal and _____________________ are considered conductors.a air b rubber c water d silk
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Materials that do not allow heat and electricity to flow easily are...a insulators b resistors c nonconductors d conductors
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Which type material allows heat and electricity to flow freely?a resistor b insulator c non-conductor d conductor
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Match the vocabulary word to its definition.Column A 1. kinetic energy: kinetic energy 2. potential energy: potential energy 3.
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Review the examples below. Which would be considered an example of convection.a boiling water on a hot stove b a glass of water
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Match the process to its description.Column A 1. Conduction: Conduction 2. Convection: Convection 3. Radiation: Radiation Column
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Why does an aluminum block feel colder to the touch than a paperback book when you pick them up even though both objects are at
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What happened at point C to end with D?a A transferred thermal energy to B to equalize both in D. Warmer always moves toward
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Which way does heat energy flow?a heat energy does not flow b from cold to hot c from hot to cold
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Which has more thermal energy, a massive iceberg or a cup of coffee?a An iceberg because it is colder b An iceberg, due to its
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When you double the amount of coffee, you also double the _______________.a temperature b neither is doubled c thermal energy
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What does the thermal energy of matter depend upon?a Temperature, only b Mass, only c Number of particles, only d Mass, number
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flows from to areas. is a measure of this flow. The transfer of thermal energy can occur in three ways: convection, conduction
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Discuss one role how radiation from the Sun impacts earth. (Pl
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What happens to the speed of the energy coversion within the system when the clouds are in the sky?a it increases b it decreases
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How is energy transferred in this system? (Place them in order start to finish)Reorder answers 1.Thermal Energy Reorder answers
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How is energy transferred in this system? (Place them in order start to finish)Reorder answers 1.Electrical Energy Reorder
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How is energy transferred in this system? (Place them in order start to finish)Reorder answers 1.Thermal Energy Reorder answers
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Match the scenario to the type of energy being described.Column A 1. Riding a bike: Riding a bike 2. A lamp turned on: A lamp
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When a plant grows using sunlight and a person then eats the plant to fuel up for a run, what is the order of energy conversion?
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As thermal energy is added to a substance, the temperature ________________. As thermal energy is removed from a substance, the
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The temperature of the brick ____________ and the temperature of the olive oil ____________.a increases; increases b increases;
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When the brick is dropped in the water, the thermal energy flows from the ____________ to the ____________.a brick; water b
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When the brick is dropped in the water, the temperature of the brick ____________ and the temperature of the water ____________.
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As you cooled the brick and iron, what happened to their temperatures? (Hint: Use the thermometer)a the temperature does not
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Which way does the energy flow?a from the ice to the brick and iron b energy does not flow c from the brick and iron to the ice
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As you added heat, what happened to the temperature of the brick and iron? (Hint: Use the thermometer)a the temperature
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Which way does the energy flow?a from the heater to the brick and iron b from the brick and iron to the heater c energy does not
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Which substance has the most energy? (Hint: Look at the energy symbols)a iron b olive oil c brick d water
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Heat always from __________ to __________.a hot; cold b cold; hot c heat does not flow
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what is the area of a sector with central angle of 210 and diameter of 4.6 m round to the nearest tenth
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what is the area of the given circle in terms of pi ? 7.4 m
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what is the circumference of the given circle in terms of pi ? 12in
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does anyone have PS-B Unit 3: Gravity Remediation
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Gravity is a force of attraction.True False
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Question 2The SI unit for weight is: a grams b m/s2 c pounds d Newtons Question 3
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What are the two factors that affect the force of gravity between to objects?a Distance and mass b Weight and mass c Distance
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Juliet wants to significantly increase the amount of kinetic energy of her bowling ball in order to increase her chances of
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Question 12A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a
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Simple machines can multiply:a forces only b energy only c forces and energy d power only
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A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy?a when the
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This image of a roller coaster is designed to show important information about potential and kinetic energy. One of these pieces
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Which falling object will result in the least kinetic energy when it collides with the ground?a 100 grams of water falling at 10
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Four rivers have the same volume of water flow over time but fall from different heights to power hydroelectric dams. Which dam
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With an increase in height, _______ also increases.The Best Tape Measures of 2023 - Tested by Bob Vila a thermal energy b
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Which object would have the most potential energy?PE = mgh g = 9.8 m/s2 a a 10 kg dog sitting on the ground b a 2 kg bottle of
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Use the table of information from an investigation to answer the question.Student Depth of Object in Sand (cm) Maddie 1.8 Naveed
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Kinetic energy differs from potential energy in that:a kinetic energy is energy of a moving object, whereas potential energy is
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For objects in free fall, acceleration due to gravity is _________________ regardless of the direction of their velocities.a
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A rock is thrown straight up into the air. While it rises and falls, its kinetic energy ...a remains constant b increases
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Object A has a mass of 50 kg. Object B has a mass of 80 kg. They are traveling at the same velocity for the same distance.
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What is the potential energy of an object that has a mass of 115 kg and is 6 meters high?a 1380 J b 676.2 J c 130.8 J d 6762 J
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You are on roller blades on top of a small hill. Your potential energy is equal to 1,000.0 joules. Your mass is 60.0 kilograms.
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According to the Law of Conservation of Energy, energy can neither be created nor destroyed.True False
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What is the kinetic energy of a 200 kg object that is moving at a velocity of 15 m/s?\large KE=\frac{1}{2}mv^2 a 3000 J b 215 J
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The total amount of __________________ is the _______________ before and after any energy transformation.a energy, different b
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Question 30Which object has the highest amount of potential energy? a Book A b Book B c Book C d Not enough information
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Question 30Which object has the highest amount of potential energy? a Book A b Book B c Book C d Not enough information
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True or FalseMachines reduce the amount of work. True False
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Potential energy is___________energy.a raised b actionable c stored d usable
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A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move
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Energy due to motion is called _____________energy.a kinetic b stored c gravitational d potential
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Potential energy depends on mass, gravitational pull, and ___________________ of an object.a height b force c velocity d
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Gravity is a(n) ____________________ force.a downward b imaginary c negligible d attractive
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Kinetic energy depends on the ____________ and velocity of an object.a mass b acceleration c weight d motion
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The rider and cart have a mass of 200 kg. When the cart is 50 m high. The cart's potential energy at this point is 10,000 J.PE=m
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According to Newton's Law of Universal Gravitation, force and mass are _________________ related.a depends on the individual
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A new truck was purchased for $58,000. Each year after the truck was purchased, its value decreased by approximately
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Find the exact area of the shaded region.shaded 120
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If a person has a mass of 50 kg, order the places from where you would be least to greatest weight.Acceleration due to Gravity
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If a person has a mass of 50 kg, what is the mass of the person on the moon?Acceleration due to Gravity Earth: a = 9.8 m/s2
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What are the two factors that affect the force of gravity between two objects?a Distance and mass b Weight and mass c Distance
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If your actual mechanical advantage is 20 J and the theoretical is 40 J, what is your percent efficiency?Hint: % Efficiency =
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If you hit a soccer ball with a force of 38 N and the soccer ball travels 12 meters, what is the amount of work you have done?An
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Mechanical advantage is calculated by using the formulaa Force of Friction/Gravity b Normal Force/ Acceleration c Height of
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Which of the following would increase an object's kinetic energy the most?a decreasing the mass of the object b increasing the
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Ms. Avari is lifting 65 kg weights in kettle bell class. She needs to swing the kettle bell over her head, a total of 2 meters
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A 45 kg baby brown bear climbs 12 meters up a tree to see if he can spot the best blueberry patch in the valley. What is the
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At which point on the slide would an object sliding down the slide have the most amount of potential energy?a A b C c B
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Calculate the kinetic energy of a 20 kg cart rolling through the track at point A.PE = m x g x h KE = 0.5 x m x v2 a 981 J b
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Calculate the potential energy of a 20 kg cart rolling through the track at point A.PE = m x g x h KE = 0.5 x m x v2 a 80 J b
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The potential energy of a system can be changed by varying the position of objects in the system.At which point do the coaster
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An object has a kinetic energy of 48 J and a mass of 6 kg, how fast is the object moving?a 16 m/s^2 b 3 m/s^2 c 4 m/s^2 d 8
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Which one of the following objects will have the highest kinetic energy?Object Mass (kg) Velocity (m/s) Object 1 2 5 Object 2 4
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If a motorcyclist has a mass of 120 kg and is biking down a road at a rate of 30 m/s, what is the kinetic energy?a 216,000 J b
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