Sec 2_Science_C:9 Forces and Energy in Nature

Front

What are the effects of forces in natural phenomena?

Back

Forces lead to changes in motion, shape, and interactions of objects, resulting in phenomena like gravity, weather patterns, and geological changes.

Front

Name the different types of forces.

Back

Contact forces, Non-contact forces

Front

How do weight and mass differ from each other?

Back

Mass is constant; weight varies with gravity.

Front

What changes can occur as a result of applied forces?

Back

Changes in motion, shape, or state of an object.

Front

Work done in the context of energy transfer

Back

Work done is the transfer of energy through the application of force over a distance.

Front

Explain the concept of energy conversion with an example.

Back

An example of energy conversion is a hydroelectric power plant, where kinetic energy of water is converted into electrical energy.

Front

What is the principle of energy conservation?

Back

Energy conservation means the total energy in a closed system remains constant.

Front

List some common sources of energy.

Back

Solar, Wind, Hydro, Natural Gas, Coal, Nuclear, Biomass, Geothermal

Front

How does gravity affect weight?

Back

Gravity affects weight by determining the gravitational force acting on an object, which defines its weight.

Front

What is the relationship between mass and inertia?

Back

Mass is directly proportional to inertia; greater mass means greater inertia.