physics Flashcards
. (8 cards)
1
Q
what is a force?
A
Make objects move or change shape.
Measured in Newtons (N)
2
Q
what is a vector?
A
Quantities with both magnitude [size] and direction such as momentum
3
Q
what is a scalar?
A
Quantities with only magnitude
4
Q
what is displacement?
A
A vector quantity that measures how far out of place an object is from A to B
5
Q
what is resultant force?
A
The overall, single force. This is zero if objects are stationary or at constant speed
6
Q
what is terminal velocity?
A
The maximum speed objects reach when falling. When weight = resistive forces
7
Q
what is hookes law?
A
Extension of an elastic object is directly proportional to the force [F = ke]
8
Q
A
