sports biomechanics

Question 1

displacement (m) =

Answer 1

final position - intial position

Question 2

velocity (m/s)

Answer 2

change in displacement / time taken

Question 3

acceleration (m/s2)

Answer 3

change in velocity / time taken

Question 4

newtons first law

Answer 4

an object will not change its motion unless a force is acted upon it

Question 5

newtons second law

Answer 5

change of momentum - proportional to the force causing it and the change takes place in the direction in which the force acts

Question 6

heavier objects require …. …. to accelerate

Answer 6

greater force

Question 7

lighter objects require … ….. to accelerate

Answer 7

less force

Question 8

weight

Answer 8

mass x acceleration

Question 9

newtons third law

Answer 9

every action has an equal and opposite reaction

Question 10

ground reaction force

Answer 10

the reaction force applied by the ground to the body

Question 11

force equation

Answer 11

mass x acceleration

Question 12

centre of mass

Answer 12

conceptual point where all mass is thought to be concentrated

Question 13

the trajectory of projectiles depends on

Answer 13

velocity, height and angle

Question 14

momentum depends on

Answer 14

athletes mass and velocity at which they’re travelling

Question 15

momentum describes

Answer 15

the quantity of motion that occurs

Question 16

linear momentum =

Answer 16

mass x velocity

Question 17

what is the optimum range of a throwing angle

Answer 17

0-90 degrees