Forces & Electricity Review - CBA 2

Front

What is density?

Back

Density is the mass of an object divided by its volume. It determines whether an object will float or sink in a fluid.

Front

Why does oil float on water?

Back

Oil floats on water because it is less dense than water.

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows electricity to flow without any breaks.

Front

What force causes objects with mass to attract each other?

Back

Gravity is the force that causes objects with mass to attract each other.

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of electricity in a circuit, allowing it to be turned on or off.

Front

What happens when there is a break in a circuit?

Back

If there is a break in a circuit, the flow of electricity stops, and devices like bulbs will not light up.

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, such as iron, and is caused by the motion of electric charges.

Front

What is the least dense liquid among oil, water, syrup, and a plastic bottle?

Back

Oil is the least dense liquid among the options provided.

Front

What is the effect of gravity on objects?

Back

Gravity pulls objects towards each other, giving them weight and causing them to fall.

Front

What is an example of a simple circuit?

Back

A simple circuit can be made with a battery, a light bulb, and connecting wires.