Forms of Motion

Question 1

The 3 forms of motion are: translation, _______ and general motion

Answer 1

rotation

Question 2

Translation involves ______ motion and occurs when a body moves so that all parts of it travel exactly the same distance, in the same ______ and in the same time

Answer 2

• linear

- direction

Question 3

The three types of translation include rectilinear (straight-line), ___________ (____ line) and non-linear motion

Answer 3

• curvilinear

- curved

Question 4

Rotation involves the movement of the body along a _______ path about a line in space so that all parts of the body travel through the same _____, in the same direction and in the same time

Answer 4

• circular

- angle

Question 5

Rotation can be about both an _________ and an ________ axis

Answer 5

• internal

- external

Question 6

____________ is a combo of both linear and angular motion (general in planar and space motion)

Answer 6

-General motion

Question 7

A ______ is defined by a body or group of bodies whose motion is being examined

Answer 7

-system

Question 8

Motion is explained relative to a _________ —- ———————, which helps to prevent ambiguity

Answer 8

-frame of reference

Question 9

Measuring motion is needed for both ___________ and to measure performance

Answer 9

-standardisation

Question 10

________________ describes motion, which kinetics explains _____ a body moves the way it does and the _____ of the movement

Answer 10

• kinematics
• why
• cause

Question 11

Quantities of measurement are both _________, which describes only the magnitude of a motion and _________ which has magnitude and direction

Answer 11

• scalar

- vector

Question 12

describing linear motion of the body (just translation, not the mass or forces acting on it) is called _________

Answer 12

-linear kinematics

Question 13

The actual change in position of something is the _________ __________

Answer 13

-linear distance

Question 14

Linear ________ is the change in position , and separation of 2 points based on both the distance and the direction travelled

Answer 14

-displacement

Question 15

the rate of covering a distance is _________ ________

Answer 15

-linear speed

Question 16

linear ____ is measured by dividing distance by ______. It is measured in m.s-1

Answer 16

• speed

- time

Question 17

When running, one’s speed is calculated by ___________ the stride length by the ______ ______

Answer 17

• multiplying

- stride rate

Question 18

At ____ velocities, there is a larger increase in Stride Length

Answer 18

-low

Question 19

At high velocities, there is minimal change in ______ ______ but a curvilinear increase in _________ ______

Answer 19

• stride length

- stride rate

Question 20

Linear ______ is the rate at which a body moves from one location to another

Answer 20

-velocity

Question 21

velocity is calculated by dividing ______ by ______ in m.s-1 (with direction)

Answer 21

• displacement

- time

Question 22

Linear acceleration (a) is the _____ at which velocity changes with respect to _____

Answer 22

• rate

- time

Question 23

(a) is calculated by dividing the difference between the _____ and _____ velocity by the elapsed time. In m.s-2 with direction and sign

Answer 23

• final

- initial

Question 24

u = initial \_\_\_\_\_\_ (m.s-1)
\_\_= final velocity (m.s-1)
t = time (s)
a= \_\_\_\_\_\_\_\_\_\_\_ (m.s-2)
_= displacement (m)

Answer 24

• velocity
• v
• acceleration
• s

Question 25

Equations of linear motion include:
v= u + at
_= ut + 0.5(at^2)
s= 0.5(_ _ +vt)
v^2=u^2 + _as

Answer 25

-s
-ut
2

Question 26

Describing angular motion of bodies like rotation around an axis is called _________ ___________

Answer 26

• angular

- kinematics

Question 27

Angular _________ is the angle between the initial and final positions of a _________ body that has over from one position to another. It is measured by following the ____ taken by the body

Answer 27

• distance
• rotating
• path

Question 28

the actual change in position from a rotating body’s start and finish is called the _______ _________. It is equal to the smaller of the two angles between a body’s initial and final positions

Answer 28

-angular displacement

Question 29

Angular _____ is the rate of covering ________. It is equal to the angular distance divided by ______. Can be measured in degrees or radians

Answer 29

• speed
• distance
• time

Question 30

The rate at which a body moves from one location to another at an angle is called the _________ __________. Is is measured by dividing the angular _______ by time. It is measured in degrees or radians with direction

Answer 30

• angular velocity (greek symbol, 8 on side)

- displacement

Question 31

Angular __________ (alpha symbol) is the rate of change in angular velocity. It is measured in degrees or radians with direction and sign

Answer 31

-acceleration

Question 32

__________ kinematics are measured in revolutions, _______ or radians

Answer 32

• Angular

- degrees

Question 33

Angular motion _______ are represented by an arrow drawn based on the right hand thumb rule

Answer 33

-vectors

Question 34

Linear and angular motion are related (think spinning something around and then letting go=both types). Linear velocity at implement end = _______ _______ _ ______ multiplied by the radium of rotation

Answer 34

-angular velocity of implement (e.g.: hitting a golf ball with a club)