pp 47-51

Question 1

Define mechanics

Answer 1

branch of physics that addresses the effects of forces on matter

Question 2

The answer in a vector addition is the ___, a vector showing the combined effect of two or more other vectors.

Answer 2

resultant

Question 3

Formula for velocity

Answer 3

Question 4

the measure of how quickly an object moves

Answer 4

speed

Question 5

two different vectors can be combined using what?

Answer 5

vector addition

Question 6

What do the letters in the formula for velocity represent?

Answer 6

v is velocity
Δx is displacement
t is time

Question 7

Contrast speed and velocity

Answer 7

speed is scalar measuring the distance covered by an object per unit time; velocity is vector measuring the displacement of an object per unit time

Question 8

can be defined mathematically as the change in position divided by time

Answer 8

velocity

Question 9

the branch of physics that addresses the effects of forces on matter

Answer 9

mechanics

Question 10

What do the letters in the formula for speed represent?

Answer 10

v is speed
d is distance
t is time

Question 11

Formula for speed

Answer 11

Question 12

the study of motion and forces

Answer 12

dynamics

Question 13

states the square of the hypotenuse is equal to the sum of the squares of the legs

Answer 13

Pythagorean theorem

Question 14

Formula for pythagorean theorem

Answer 14

Question 15

What term describes a vector showing the combined effect of two or more vectors?

Answer 15

resultant