11.7A Concepts used to model motion

11.7 modelling motion

Dr. Ricky's Note

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​Quantitative: data that can be measured by the quantity

Vectors: a quantity that is described by both a magnitude and a driection.

Scalars: a quantity that is fully described by a magnitude.

Magnitude: a number that defines only the size of a quantity.

Vector and Scalar

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Multiple Choice

Distance and direction of an object's change in position from a starting point

• displacement

• distance

• motion

• reference point

Multiple Choice

Which of these is not a vector quantity? 

• displacement 

• time

• velocity 

• acceleration

Multiple Choice

Which of the following is not a vector quantity?

• velocity

• force

• distance

• acceleration

Multiple Choice

A vector requires

• a magnitude.

• a direction.

• an unbalanced force.

• both magnitude and direction.