Topic 9 - Forces & Their Effects

Question 1

How can object interact?

Answer 1

• at a distance without contact (e.g. gravity)
• with contact (e.g. friction)
• producing pairs of forces represented with vectors

Question 2

Describe a situation were a force can cause rotation:

Answer 2

• Actions which makes things rotate like turning a door handle

Question 3

Explain examples of :
1. The forces acting on an isolated solid object
2. A system where several forces lead to resultant force on an object
3. balanced forces when the resultant force is zero

Answer 3

1. A book on a table has balanced forces keeping it stationary.
   - A car traveling at a constant speed has balanced driving and resisting forces, so 0 resultant force