(R) 5.6A Science STAAR (Uses of Energy)

Front

What type of energy is used to make the turbines spin in a dam where water flows through turbines?

Back

Mechanical energy

Front

Three different objects that use the same source of energy are shown here. What is the energy source for these objects? (5.6A)

Back

Light energy

Front

What kinds of energy are needed in this investigation to change the state of matter of the candle?

Back

Electrical and thermal

Front

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

Back

The metal pan conducts thermal energy.

Front

Which form of energy is used to turn on the switch in a Rube Goldberg cartoon? (5.6A)

Back

Mechanical energy

Front

Which of these is not an example of the bicycle using mechanical energy?
The pedals, gears, and chain help turn the wheels.
The wheels turn when the bicycle moves.
The front wheel guides the bicycle as it moves.
The reflector allows the bicycle to be seen at night.

Back

The reflector allows the bicycle to be seen at night.

Front

In addition to mechanical energy, which of these is produced as electric current passes through the circuit of an electric fan? (5.6A)
Options: Heat, Mass, Light, Water vapor

Back

Heat

Front

When a bat searches for prey at night, it makes sounds as it flies, and it uses the sounds' echoes to find its prey. When the bat flies and listens to echoes to locate prey, it is using---

Back

mechanical energy and sound energy

Front

A student made a list of activities that involve energy. Which activities on the list are examples of the use of mechanical energy?

Back

Activities 1, 4, and 6

Front

An old-fashioned metal toy is shown below. When the candle is lit, the carousel of horses begins to turn. Which of these correctly describes the energy that makes the carousel turn?

Back

Heat from the candle produces currents of warm air.