3 11.4.2 Read the text again. For questions 1-6, choose from
texts A-E.
Which type of energy...
1 exists in the connections
between particles?
2 varies depending on speed?
3 is possible to see with the
naked eye?
increases in proportion
to heat?
5 changes with distance from
the Earth's surface?
is both potential and kinetic?
4

1. Which type of energy exists in the connections between particles?
Answer: The energy that exists in the connections between particles is called potential energy.

Explanation: Potential energy refers to the energy stored in an object based on its position or state. In the case of particles, the energy is stored in the bonds or connections between them. This energy can be released or transformed into other forms of energy when the particles interact or undergo changes in their arrangement.

2. Which type of energy varies depending on speed?
Answer: The type of energy that varies depending on speed is kinetic energy.

Explanation: Kinetic energy is the energy possessed by an object due to its motion. The amount of kinetic energy an object has depends on its mass and velocity. As the speed of the object changes, its kinetic energy also changes. When an object moves faster, its kinetic energy increases, and when it slows down, its kinetic energy decreases.

3. Which type of energy is possible to see with the naked eye?
Answer: The type of energy that is possible to see with the naked eye is light energy.

Explanation: Light energy refers to the form of energy that allows us to see. It is a type of electromagnetic radiation that can be detected by our eyes. When light interacts with objects, it can be reflected, absorbed, or transmitted, leading to visual perception. We can see objects and their surroundings due to the presence and transmission of light energy.

4. Which type of energy increases in proportion to heat?
Answer: The type of energy that increases in proportion to heat is thermal energy.

Explanation: Thermal energy refers to the energy associated with the motion and vibrations of particles within a substance. When heat is added to a substance, the particles gain energy and move faster, increasing the substance's thermal energy. The amount of thermal energy in a system is directly proportional to the heat transfer involved.

5. Which type of energy changes with distance from the Earth's surface?
Answer: The type of energy that changes with distance from the Earth's surface is gravitational potential energy.

Explanation: Gravitational potential energy is the energy possessed by an object due to its position in a gravitational field. Near the Earth's surface, where the gravitational force is stronger, objects have a higher gravitational potential energy compared to when they are further away. As an object moves farther from the Earth's surface, its gravitational potential energy decreases.

6. Which type of energy is both potential and kinetic?
Answer: The type of energy that is both potential and kinetic is mechanical energy.

Explanation: Mechanical energy refers to the sum of potential and kinetic energy in a system. Potential energy can be stored in objects or systems based on their position or configuration, while kinetic energy arises from the motion of objects. Mechanical energy encompasses both forms and is the total energy associated with the movement and position of objects or systems.