Forces And Vector Diagrams Flashcards

1
Q

What are vector quantities?

A

Quantities which have both magnitude (size) and direction.

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2
Q

What is free body diagram?

A

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.

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3
Q

What are scale diagrams?

A

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

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4
Q

What are the steps to draw a scale diagram?

A

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

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5
Q

When is an object in equilibrium?

A

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

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6
Q

What two components can forces be split into?

A

Horizontal

Vertical = normal component

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