Energy Question Preview (ID: 57721)


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Before coming to school, Angela used electrical energy to warm her breakfast, light up a room, and charge her cell phone. Which statement about electrical energy is true?
a) If the charged particles are moving, electrical energy is a type of kinetic energy.
b) If uncharged particles are moving, electrical energy is a type of potential energy.
c) If the charged particles are not moving, electrical energy is a type of kinetic energy.
d) If the charged particles are moving, electrical energy is a type of potential energy.

Before Mrs. Hernandez decides what to wear for the day, she wants to know what the temperature is going to be. Which type of energy is most closely related to temperature?
a) chemical
b) electrical
c) mechanical
d) thermal

Miguel lives near Miami, Florida. His home receives electricity from the Turkey Point power plant, which uses nuclear energy to provide electricity to homes and businesses. What is used to provide energy in a nuclear power plant?
a) chemical reactions
b) nuclear fission reactions
c) nuclear fusion reactions
d) physical changes

George rolled four different types of paper into four different cylinders. Identical 10-cm rubber bands were placed around the cylinders to hold the paper in place. Each number in the answer choices is the diameter of one of the cylinders. Which cyli
a) 5
b) 10
c) 20
d) 25

Andre really likes his new car, and he knows that it has a certain amount of mechanical energy. Which types of energy are included in the mechanical energy of the car?
a) electrical energy from the battery
b) kinetic energy from any movement the car has
c) thermal energy from when fuel burns in the engine
d) n/a

Lance is a 60-kg runner who, on a good day, runs at a speed of 5 m/s. What is his kinetic energy when he runs at this speed?
a) 150
b) 300
c) 750
d) 1500

Bonito has potential energy while he is in the starting blocks, getting ready to run his 5-kilometer race. Which of the following statements are FALSE about his potential energy?
a) It can do work.
b) It is stored energy.
c) It might be used later.
d) It can be changed into kinetic energy.

Colin is helping a librarian return books to the shelves where they belong. He picks up books from the librarian’s desk, as shown in Figure A. He then carries them to the shelves, as shown in Figure B. In which figure does Colin do work?
a) Figure A
b) Figure B
c) Both
d) Neither

The bobsled is an event in the winter Olympics. In this event, each sled and its riders speed down an icy track. Which factor(s) affect how much kinetic energy the sled and its team have when the sled crosses the finish line?
a) mass only
b) speed and time
c) speed and mass
d) speed, mass, and time

Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push a shovel 0.25 meters into the ground. How much power was used?
a) .01 watts
b) 6.25 J/s
c) 25 nms
d) 100 watts

Chad’s family just moved into a new home. The sun went down as Chad was moving boxes into the house, so he had to turn on a light to see. Which statements are true about the power Chad used?
a) The power he used to move the boxes can be found by determining the rate at which work was done on the boxes.
b) The power Chad used to move the boxes is the force he used times the distance he moved them.
c) The power of the light Chad turned on is the amount of energy changed from electricity to light.
d) n/a

Marissa uses a cart to haul flowers at her job as a landscaper. She pushes a 12-kilogram cart a distance of 6 meters with a force of 25 Newtons. How much work does she do?
a) 4.25
b) 12.5
c) 150
d) 1800

Four students are each pushing on one side of a box. Mara is pushing to the west, Cindi is pushing to the east, Chris is pushing to the north, and Sammy is pushing to the south. If the box moves to the east, which student does work on the box?
a) Mara
b) Cindi
c) Chris
d) Sammy

Deanna's niece loves to swing at the local playground, so Deanna takes her and pushes her on the swing. Deanna must use _____ to exert a _____ that causes the swing to change _____.
a) energy/force/motion
b) force/motion/energy
c) motion/energy/force
d) force/energy/motion

What type of energy is ONLY kinetic?
a) chemical
b) electromagnetic
c) mechanical
d) thermal

During a camping trip, Ming gathers firewood and arranges it in the fire pit. She sets it on fire, and the result is a roaring blaze. Which statement best shows all the energy transformations that took place?
a) chemical to thermal
b) thermal to electromagnetic
c) chemical to thermal and electromagnetic
d) chemical and electromagnetic to thermal

As a candle burns on a table, you can see the electromagnetic energy and feel the thermal energy released. Which statement is true about the energy involved in burning a candle?
a) Chemical energy is created from electromagnetic energy when the candle burns.
b) The total amount of all types of energy is conserved when the candle burns.
c) Thermal and chemical energy are destroyed by the electromagnetic energy when the candle burns.
d) n/a

What is the difference between an energy transfer and an energy transformation?
a) Transfer is movement of energy from one place to another, and transformation is the change of one type of energy to another.
b) Transformation is movement of energy from one place to another, and transfer is the change of one type of energy to another.
c) There is no difference. Both involve movement of energy from one place to another.
d) There is no difference. Both involve the change of one type of energy to another.

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