Heat Energy
A student places a warm cup of tea on a cold counter. After ten minutes, the cup is cooler. What happened to the heat?
A. It stayed in the cup
B. It moved from the cup on to the counter to make the counter cooler
C. The cold moved into the cup
D. It disappeared
B. It moved from the cup on to the counter to make the counter cooler
A metal spoon and a wooden spoon sit in hot soup. The metal spoon gets hotter.
Why?
A. Wood is a better conductor
B. Metal conducts heat better
C. Soup cools metal
D. The wood absorbs heat faster
B. Metal conducts heat better
A flashlight shines on a mirror.
What will the light do?
A. Bounce back
B. Stop moving
C. Get absorbed
D. Turn into sound
A. Bounce back
When a drum is hit, the drumhead moves back and forth.
What does this motion cause?
A. Light
B. Wind
C. Sound
D. Heat
C. Sound
A radio turns on when plugged into a wall.
Which kind of energy is used?
A. Heat
B. Electrical
C. Sound
D. Light
B. Electrical
A teacher puts a cold spoon into a bowl of hot soup. The spoon becomes warm.
What does this show?
A. Heat moves from hot soup to the cooler spoon
B. The spoon makes the soup colder
C. Cold travels into the soup
D. The soup loses color
A. Heat moves from hot soup to the cooler spoon
Why do pot holders protect your hands?
A. They slowly melt
B. They let heat pass through quickly
C. They are insulators that block heat
D. They push cold into your hands
C. They are insulators that block heat
A pencil looks bent when half in water.
Why?
A. Light bends when it moves through water
B. Water stops the light
C. The pencil changes shape
D. Light reflects off the bottom
A. Light bends when it moves through water
What happens when guitar strings are tightened?
A. The pitch gets higher
B. The pitch gets lower
C. The sound disappears
D. The strings stop vibrating
A. The pitch gets higher
What gives a flashlight energy to work?
A. The plastic case
B. The battery
C. The lightbulb
D. The switch
B. The battery
Jasmine leaves the oven door open to cool cookies.
Why does the kitchen get warmer?
A. The oven pulls warm air inside
B. Heat from the oven moves into the cooler room
C. Cold air moves into the oven
D. The oven light warms the kitchen
B. Heat from the oven moves into the cooler room
A teacher wraps a plastic handle around a metal pan lid.
What is the purpose?
A. To absorb all heat
B. To prevent heat from reaching your hand
C. To cook food faster
D. To make the lid heavier
B. To prevent heat from reaching your hand
A student puts a blue filter in front of a flashlight and the room becomes darker.
What happened to the light?
A. It was absorbed by the filter
B. It sped up
C. It bent around the filter
D. It went through unchanged
A. It was absorbed by the filter
A student blows across a bottle opening and hears a sound.
What creates the sound?
A. The bottle freezes
B. Air vibrates
C. Light reflects
D. Heat is absorbed
B. Air vibrates
A robot starts moving and lighting up when batteries are inserted.
Why?
A. Batteries supply energy
B. Batteries cool the robot
C. Batteries stop motion
D. Batteries reflect light
A. Batteries supply energy
A cold plate and a hot cup are stacked together. After a few minutes, both are close to the same temperature.
Why?
A. Heat moved from the hot cup to the cooler plate
B. Cold moved to the cup
C. They traded temperatures
D. The heat turned into light
A. Heat moved from the hot cup to the cooler plate
Students place four materials—metal, plastic, glass, and wood—into warm water.
Which will heat up the fastest?
A. Plastic
B. Metal
C. Wood
D. Glass
B. Metal
A student blocks a flashlight beam with their hand.
What happens to the objects behind their hand?
A. It gets no light
B. It shines brighter
C. It glows
D. The light goes through the hand
A. It gets no light
Which action will make a sound louder?
A. Tapping a drum lightly
B. Plucking a guitar softly
C. Hitting a tuning fork harder
D. Whispering
C. Hitting a tuning fork harder
A student pushes a cart and lets go. The cart keeps rolling forward. Which form of energy is mainly being shown?
A. Thermal energy
B. Mechanical energy
C. Electrical energy
D. Light energy
B. Mechanical energy
A rock heats up when left in the sun on Monday, but not on a cloudy Tuesday.
Why did it warm up on the sunny day?
A. Sunlight provided heat energy
B. Clouds made the rock cooler
C. Rocks only heat on weekends
D. Clouds reflect heat toward the rock
A. Sunlight provided heat energy
A student wants to keep ice from melting quickly.
Which material should they wrap it in?
A. Aluminum foil
B. A metal bowl
C. A wool cloth
D. A glass jar
C. A wool cloth
Which change shows light being absorbed?
A. A black shirt getting warm
B. Light bouncing off a lake
C. A mirror reflecting a flashlight
D. Light bending through a window
A. A black shirt getting warm
A student notices that smaller tuning forks make a higher sound when struck over a desk edge.
Why?
A. smaller tuning forks vibrate faster
B. Larger tuning forks vibrate faster
C. Sound stops in smaller tuning forks
D. Tuning forks create light energy
A. Smaller tuning forks vibrate faster
Which objects all produce light AND heat energy?
A. A candle, the Sun, and a flashlight
B. A rock, a book, and a pencil
C. A pillow, a blanket, and a chair
D. A spoon, a cup, and a ruler
A. A candle, the Sun, and a flashlight