Energy Transfer Evidence

Grade 4 Science Worksheet - Building Confidence

Circle the answer.

1. 1.

   Your hands feel warm near a campfire. What energy made them warm?

   • sound
   • heat
   • cold
2. 2.

   A pulled-tight string joins two paper cups. A friend talks into one cup and you hear her in the other. How does the energy travel?

   • as heat in the string
   • as electric current in the string
   • as vibrations along the string
3. 3.

   A buzzer is joined to a battery. Which is evidence that electric current is flowing?

   • the wires turn green
   • the battery gets bigger
   • the buzzer makes a sound
4. 4.

   A battery is joined to a small bulb by two wires and the bulb lights. What carried the energy to the bulb?

   • electric current in the wires
   • heat from your hand
   • sound in the wires