Category 2: Energy, Force and Motion

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a primary source of light?

Back

A primary source of light is an object that emits its own light, such as the sun or a light bulb. A mirror reflecting sunlight is not a primary source.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, causing it to slow down or stop.

Front

What type of energy is used in tug of war?

Back

Mechanical energy is the type of energy used in tug of war, as it involves the movement and force applied by the participants.

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and components such as resistors or bulbs.

Front

What is the difference between a series circuit and a parallel circuit?

Back

In a series circuit, components are connected in a single path, while in a parallel circuit, components are connected across multiple paths.

Front

What is the role of a resistor in a circuit?

Back

A resistor is a component that limits the flow of electric current in a circuit, providing resistance.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as gravitational potential energy.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.