Forms of Energy
Meeka knows that a lamp uses electrical energy to produce light. What other form of energy does the lamp produce?
A. heat
B. sound
C. chemical
D. mechanical
A. heat
Devon sees electric streetlights from his car window. One of the light bulbs bursts,and he sees a flash and hears a loud pop. Which of these best describes the energy transformation(s) Devon witnessed?
A. light to sound and electrical energy
B. electrical energy to light and heat
C. sound to light, heat, and electrical energy
D. electrical energy to light, heat, and sound
D. electrical energy to light, heat, and sound
When a boy runs, his changing position is due to mechanical energy. Which of these also involves a change due to mechanical energy?
A. water falling over a cliff
B. rock sitting on top of a hill
C. light coming from a desk lamp
D. batteries powering a calculator
A. water falling over a cliff
Sanjaya uses a balloon to pick up several pieces of paper. Which of the following statements about the paper and the balloon could NOT be true?
A. the balloon and the paper have like charges
B. the balloon and the paper have opposite charges
C. the balloon has an electric charge but the paper has no charge
D. the balloon has no charge but the paper has an electric charge
A. the balloon and the paper have like charges
Lonnie stirred some sugar into a pitcher of lemonade. What likely happened to the sugar?
A. the sugar floated to the top surface
B. the sugar dissolved in the lemonade
C. the sugar floated away after it was stirred
D. the sugar all settled to the bottom of the pitcher
B. the sugar dissolved in the lemonade
Melissa's school rings a bell to alert students that it is time to start class. When the bell rings, it vibrates. The use of vibrations to send messages is an example of which type of energy?
A. Chemical
B. Heat
C. Light
D. Sound
D. Sound
Which of these is NOT an example of electrical energy being changed to useful heat energy?
A. a moving car
B. toasting bread in a toaster
C. using a bathroom hand dryer
D. drying your hair with a hair dryer
A. a moving car
When riding a bicycle, what force is causing the motion of the object?
A. the force of gravity
B. the force of the pedals
C. the force of the bicycle's brakes
D. the force of the rider's legs and feet
D. the force of the rider's legs and feet
There is a circuit that includes a battery, wires, a bulb, and a switch.What is the function of the switch?
A. it opens or closes the circuit
B. it provides electricity to the bulb
C. it provides electricity to the battery
D. it changes electricity to light energy
A. it opens or closes the circuit
Guy’s drawing of the water cycle shows the heat from the Sun making ocean water evaporate. Which best explains the change?
A. chemical change from liquid to gas
B. chemical change from liquid to solid
C. physical change from liquid to gas
D. physical change from liquid to solid
C. physical change from liquid to gas
Juan wants to learn about energy. He makes the following statements. Which statement about energy is correct?
A. energy is not useful
B. energy can cause motion or change
C. energy is used up when it causes a change
D. energy does not change forms
B. energy can cause motion or change
Rick is doing an experiment to see how mirrors change light. He holds a candle up to a mirror. When he does this, there is more light in the room. What is happening to the light?
A. the mirror is producing its own light
B. the light is refracted by the mirror
C. the light is absorbed by the mirror
D. the light is reflected by the mirror
D. the light is reflected by the mirror
Aiden is testing ways to fly a paper airplane. Each time he attempts to fly the airplane, it drops to the ground. What force is causing the airplane to fall?
A. Balanced forces
B. Acceleration
C. Magnetism
D. Gravity
D. Gravity
Isabelle is sorting objects as conductors or insulators. Which item is classified incorrectly as a conductor?
A. aluminum foil
B. paper clip
C. toothpick
D. metal spoon
C. toothpick
Olivia left a cup of water outside on a hot day. She forgot about it, and when she came back the next day, there was no water in the cup. What happened to the water?
A. The water melted
B. The water turned into ice
C. The water evaporated into the air
D. The water was absorbed by the cup
C. The water evaporated into the air
Zelda has a pet turtle. In the turtle‘s cage, it has a special lamp to make the environment more comfortable. How does the lamp affect the turtle‘s environment?
A. it only provides heat
B. it only provides light
C. it provides both heat and light
D. it provides both water and light
C. it provides both heat and light
Which of the following is an example of friction producing heat?
A. Getting a sunburn
B. Taking a warm bath
C. Melting a bag of marshmallows
D. Rubbing sticks together to start a fire
D. Rubbing sticks together to start a fire
William used a hammer to pound a nail into a wooden board. When the nail was about halfway through the board, he stopped and turned the board upside down. The nail stayed in place in the board. Which of the following acts on the nail to keep it in place in the board.
A. Friction
B. Gravity
C. Magnetism
D. Weight
Ariana uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged balloons close to each other?
A. The balloons will move apart
B. One balloon will lose its charge
C. The balloons will come together
D. One balloon will gain a negative charge
A. The balloons will move apart
A car is left outside for a long time, and parts of the metal begin to rust and change color. What type of change is happening to the metal?
A. Physical change; the metal is rusting
B. Chemical change; the metal is rusting
C. Physical change; the metal is breaking
D. Chemical change; the metal is breaking
B. Chemical change; the metal is rusting
Len is writing about the ability to cause motion or make something change. Which word best describes this?
A. Energy
B. Friction
C. Inertia
D. Mass
A. Energy
Jason stretches a rubber band between his fingers. When he plucks the rubber band, it makes a sound. Which of the following best explains why the rubber band makes a sound when Jason plucks it?
A. It heats the air
B. It vibrates the air
C. It absorbs the energy from the air
D. It releases molecules into the air
B. It vibrates the air
A pan of water is boiling on a stove, and a bucket of water is heating outside in the hot sun. Which container of water is warmer?
A. the pan because there is less heat being applied
B. the pan because there is more heat being applied
C. the bucket because there is less heat being applied
D. the bucket because there is more heat being applied
B. the pan because there is more heat being applied
What causes the pencil to look broken in a glass of water?
A. light travels in many directions until it is reflected
B. light travels in many directions, making the pencil look broken
C. light travels in a straight line until it is refracted, making the pencil break
D. light travels in a straight line until it is refracted, making the pencil look broken
D. light travels in a straight line until it is refracted, making the pencil look broken
Which of the following groups could be categorized by their shared physical properties?
A. strawberry, cucumber, concrete
B. cucumber, lemon, strawberry
C. strawberry, milk, concrete
D. cucumber, broccoli, lime
D. cucumber, broccoli, lime