Energy Resources in Daily Life

What role do energy resources play in our daily lives?

• A) Energy resources are only used to heat homes and businesses.

• B) Energy resources are used for transportation but not for electricity.

• C) Energy resources can power homes, businesses, and transportation.

• D) Energy resources have no impact on our daily lives.

A class is investigating friction using the setup shown below to test this hypothesis:

The smoother the landing surface, the farther the car will roll.

What is ONE more piece of equipment needed to collect data to test the hypothesis AND how can the hypothesis be tested?

Look at the diagram carefully. Then enter your answer and explanation.

A group of students built the circuit below. The light bulb does not glow. Which statement BEST explains this observation?

• The battery is not charged.

• The circuit does not have a switch.

• The bell uses most of the energy from the battery.

• The light bulb is not part of the closed path.

Students investigate the circuit shown below. They observe that a light bulb only lights up when certain objects are placed between point B and point C. They recorded their observations in the table below. Select TWO materials that are electrical conductors.

• iron nail

• plastic button

• rubber eraser

• steel paperclip

A group of students is investigating the transformation of energy. They use various levels of force to ring a bell and record the volume (loudness) of the sound produced. Their results are shown in the table below.

What types of energy are transforming in this investigation?

• Electrical energy is transforming to sound energy.

• Mechanical energy is transforming to sound energy.

• Sound energy is transforming to mechanical energy.

• Electrical energy is transforming to mechanical energy.

A group of students is investigating the transformation of energy. They use various levels of force to ring a bell and record the volume (loudness) of the sound produced. Their results are shown in the table below.

Which of the following conclusions can be drawn from the investigation?

• Less force causes louder sounds.

• Greater force causes quieter sounds.

• The amount of force does not impact the volume of the sound.

• Greater force causes louder sounds.

Which of the following is an example of energy transformation in a household appliance?

• B) A fan converting sound energy to mechanical energy.

• D) A light bulb converting electrical energy to light energy.

• C) A washing machine converting mechanical energy to electrical energy.

• A) A refrigerator converting electrical energy to thermal energy.

In a closed circuit, what happens to the energy supplied by the battery?

• A) It is completely lost as heat.

• B) It is transformed into other forms of energy like light and sound.

• D) It is used up entirely by the wires.

• C) It remains stored in the battery.

What is the primary reason for using renewable energy resources?

• A) They are cheaper than non-renewable resources.

• C) They produce more energy than non-renewable resources.

• B) They are unlimited and have less environmental impact.

• D) They are easier to store and transport.

Which of the following is a benefit of using solar energy?

• D) It requires a lot of water to generate electricity.

• C) It is a renewable and clean source of energy.

• B) It produces harmful emissions.

• A) It is available only during the night.