May the force be with you...

Here is a list of questions we will be exploring in the topic of forces this week:

• What is a force?
• What is the unit of force?
• Describe three forces and their effects

Why do we get blisters?

• What is friction?
• Name three examples of friction from everyday life
• Explain the effect of lubrication

We will be using springs and weights in some lessons... 

• Investigate the relationship between the extension of a spring and the applied force
• What is Hooke’s Law?

• What is weight? 
• Is weight a constant value? 
• What is the difference between weight and mass?
• What is the relationship between the mass of an object and its weight in newtons on the surface of the earth?

What on earth does he mean? ;) 

• Find the centre of gravity of a thin lamina;
• Investigate the role of centre of gravity in design for stability and equilibrium

Why is that a horrible present???!

• Investigate the law of the lever
• Name two everyday applications of levers

Work is done when a force moves an object... 

• Define and give the units for work, energy and power
• State the relationship between work and power and perform simple calculations based on this relationship