Forces And Vector Diagrams

Question 1

What are vector quantities?

Answer 1

Quantities which have both magnitude (size) and direction.

Question 2

What is free body diagram?

Answer 2

Shows the effect of forces on an object

Imagine the object in the middle with arrows coming out of it p, according to the force.

Question 3

What are scale diagrams?

Answer 3

Show the forces acting on an object and the angles between them to calculate the resultant force.

Question 4

What are the steps to draw a scale diagram?

Answer 4

1) Decide on suitable scale
2) Draw the arrows at correct angles
3) Form a parallelogram by joining up 2 more lined to these ones
4) Resultant force = diagonal of parallelogram

Question 5

When is an object in equilibrium?

Answer 5

When all the forces acting on an object combine to give a resultant force of 0.

Question 6

What two components can forces be split into?

Answer 6

Horizontal

Vertical = normal component