Quiz one intro chapter and chapter 1 Flashcards Preview

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Flashcards in Quiz one intro chapter and chapter 1 Deck (26):
1

What is biomechanics

the study of forces and their effects on living systems

2

What is the goal of biomechanics

improve performance and prevent injury

3

If the goal of biomechanics is to improve performance and prevent injury how can we help with that

improve equipment and improve training

4

What is the international system of units

metric system

5

What are the three things that we measure in biomechanics

length, mass, time

6

how do we measure length, mass, and time

length- meters, mass- kilogram, time- seconds

7

1 kg weighs

2.2 lbs

8

What is inertia

resistance to change in motion

9

A newton =

kg x m/s^2

10

What is a newton

the amount of force required to accelerate 1 kg- mass per second

11

non-contact no contact force gravity weight equation

w=mg
g- acceleration due to gravity= 9.81 m/s^2 down

12

contact equation

F= u x R
F- friction
u- coefficient of friction
R- normal contact force (N)

13

what to do to get the sum of 2 forces

add them together to get resultant force

14

how many meters in a yard

.91 m

15

how many meters in one mile

1609

16

what is the normal contact force

reaction to another force

17

mass times gravity is

Newton

18

1N =

1 kg x m/s^2

19

when see mass think

kg

20

when see weight think

N

21

when see inertia think

mass

22

how many feet in 1 meter

3.3ft

23

how many kilometers in one mile

1.6

24

If have free body diagram of something in kg

1. Change it to newtons
2. look of equation
3. plug it in
4. solve

25

who is the important man

Issac Newton

26

identify 4 things on free body diagram

1. Weight (goes down)
2. normal contact force (opposite weight)
3. Impact force (direction the force is coming from)
4. Static friction (between your feet and ground