Forces Cambridge

What are non-contact forces? Give 2 examples.

Differentiate b/w balanced & unbalanced forces.

Tia puts a piece of wood into a stream. The wood sinks. What does this tells you about the size of upthrust compared with the weight of the piece of wood?

Answer the following:

1. 1. Write the definition of force.

2. 2. After effects of applying force.

3. 3. SI unit & formula of force.

Mercury has a density of 13.5 g/cm^3. Water has a density of 1 g/cm^3 at room temperature.

What would happen if you tried to mix water & mercury? Explain your answer.

Define Upthrust & how it works.

Answer the following:

1. 1. Density.

2. 2. Formula of density.