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- 1. Multiple ChoiceRyan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?sound energyelectrical energylight energyheat energy
- 2. Multiple ChoiceBetty knows that different types of energy are produced by many objects around the house, such as a light bulb.
Which types of energy does the bulb give off?heat and electriclight and mechanicallight and heatelectric and light - 3. Multiple ChoiceThe Sun is the source of heat in a desert. The body temperatures of reptiles, like lizards, change with their environment. Which statement describes how the heat of the sand affects the lizard’s body as it comes out of the shade?The sand gets cooler when then lizard walks across it.The lizard’s body temperature increases.The sand gets warmer when the lizard lays down.The lizard’s body temperature decreases.
- 4. Multiple ChoiceThe students in Miss Zunz’s class are learning about how different forms of energy are used. They make a chart as shown below.
Electric energy: computer, freezer
Heat energy: ?
Energy of motion: roller coaster, swing set
Which of these best completes the students’ chart?campfire, stovelight bulb, fanboiling water, pinwheeldrum, trombone - 5. Multiple ChoiceBeth is learning about the properties of heat in science class. She knows that heat must flow to cause a change of temperature in a substance. Which of the following will cause the fastest change in temperature of an ice cube?ice cube in a pot of cold waterice cube in a pot of warm waterice cube in a pot of boiling waterice cube on a plate at room temperature
- 6. Multiple ChoiceGeorge holds an ice cube in his hand. As he squeezes the ice, it begins to melt. Which of the following best explains why this happens?George absorbs heat from the ice.Heat moves from Abdul’s hand into the cube and warms it.Cold moves from the ice onto George’s hand as it melts.George releases cold to the ice.
- 7. Multiple ChoiceSteve knows that heat can transfer between two substances. For example, a warm bowl of soup can warm a metal spoon. Which of the following must be present for heat to flow from one substance to another?One of the substances must always be a solid.One of the substances must always be a liquid.The substances must be at different temperatures.The substances must be at the same temperature.
- 8. Multiple ChoiceChelsea is drinking fruit juice from an aluminum can. She wants to pour the juice into a cup. Which of the following cups will most likely keep her fruit juice cold?foamglassmetalpaper
- 9. Multiple ChoiceAndy puts on a pair of mittens and his winter coat. He goes outside to play in the snow. Which of the following explains why his hands stay warm?The gloves are good insulators that trap heat.The heat flows quickly from the mitten to the snow.The gloves are good conductors that trap heat.The heat flows quickly from the snow through the mitten
- 10. Multiple ChoiceDebbie's mother has different types of pots in her kitchen. Many of them are made of copper and aluminum. Some are made of glass. Which of the following is the best reason why the pots are made of these materials?They are able to stop the flow of heat.They are good insulators of heat.They keep the same amount of heat.They are good conductors of heat.
- 11. Multiple ChoiceValarie is investigating how heat affects the rate of evaporation of water. She makes a prediction that heat will increase the rate of evaporation. Which of the following will provide evidence that Valarie needs to support her conclusion?prior knowledge and classifyingdata and observationsquestions and inferencesanalysis and hypotheses
- 12. Multiple ChoiceFive groups in Mr. Ruiz's class conduct an experiment to measure the effect of different insulators on temperature. Group B is the only group that concludes that foam is not a good insulator of heat. What most likely accounts for the different results?Group B did not make accurate measurements of temperature.Group B was the only group that wrote down the procedure.Group B had a different number of students than the other groups.Group B are better investigators than the other groups
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