Physics

Question 1

Study of the physical world. Science of energy

Answer 1

Physics

Question 2

System of measurement based on multiples of 10

Answer 2

Metric System

Question 3

Digits that were actually measured and have physical significance.

Answer 3

Significant Figures

Question 4

sinθ =

Answer 4

sinθ =opposite/hypotenuse

Question 5

cosθ =

Answer 5

cosθ =adjacent/hypotenuse

Question 6

tanθ =

Answer 6

tanθ =opposite/adjacent

Question 7

quadratic formula

Answer 7

x=(-b+-sqrt(b^2-4ac))/2a

Question 8

A quantity that represents magnitude (size) and
direction. It is usually represented with an arrow to indicate
the appropriate direction. They may or may not be drawn to
scale

Answer 8

Vector

Question 9

A quantity that can be completely described its
magnitude, or size. It has no direction associated with its
size.

Answer 9

Scalar
ex. Temperature, mass, time, distance, speed (but not velocity)

Question 10

Speed of an object which includes its direction of
motion. Velocity is a vector quantity

Answer 10

Velocity

Question 11

Rate at which an object’s velocity changes
with time; this change may in speed, direction, or both.

Answer 11

Acceleration

Question 12

formula for velocity

Answer 12

v=d/t

Question 13

formula for acceleration

Answer 13

a=delta v/delta t