4th Grade 2nd 6 Weeks Brackin 20

What form of energy caused the ice to melt in a cup left from the night before?

• sound energy
• light energy
• thermal energy
• mechanical energy

Which substance best completes the table above?

• Rainwater
• Clouds
• Steam
• Brick

Which form of energy makes the room brighter when a lamp is switched on?

• Sound energy
• Electrical energy
• Chemical energy
• Light energy

All of the following are examples of thermal energy EXCEPT the energy produced by —

• rubbing your hands together
• a hot plate boiling water
• plugging in a portable radio
• burning wood in a fireplace

Which of the following is the best example of a student using electrical energy?

• Using scissors to cut a piece of yarn
• Writing down the homework assignment
• Knocking on the classroom door
• Turning on the light in the classroom

Which of the following is an important safety practice during a lab investigation of thermal energy?

• Making sure your hands are dry when plugging in a sound recorder
• Using insulated gloves when handling heated beakers
• Remembering not to look directly at the Sun while investigating shadows
• Informing the teacher of a broken graduated cylinder

Which form of energy will be demonstrated when the woman pushes the wheelchair?

• mechanical
• electrical
• light
• thermal

On a windy day, a student flew a kite in an open field. What type of energy is used to fly a kite?

• Electrical energy
• Mechanical energy
• Sound energy
• Thermal energy

Which statement does NOT accurately represent thermal energy?

• Thermal energy can be transferred from one object to another.
• Humans can detect thermal energy with their eyes.
• Thermal energy can cause a change in the state of matter.
• An example of thermal energy can include boiling water.

Which object is the best conductor of electricity?

• A ceramic mug
• A plastic fork
• A penny
• A wooden craft stick