projectile motion

Question 1

projectile motion

Answer 1

movement of body or object in the air

Question 2

horizontal displacement of a projectile

Answer 2

1. angle of release
2. speed of release
3. height of release

Question 3

speed of release

Answer 3

the greater the release velocity the greater the horizontal displacement

Question 4

height of release

Answer 4

the greater release height results in increase in horizontal displacement

Question 5

angle of release

Answer 5

if release height is smaller than landing height use 45o+

Question 6

horizontal displacement

Answer 6

the shortest distance from the starting point to the finishing point in a line parallel to the ground

Question 7

parabola

Answer 7

a curve with matching left and right hand sides

Question 8

factors affecting flight paths of projectiles

Answer 8

• weight (gravity)

- air resistance

Question 9

parabolic flight

Answer 9

projectiles with a large weight force have a small air resistance force and follow a true parabolic flight path e.g. shot put

Question 10

distorted parabolic flight

Answer 10

In projectiles with a lighter mass, the effects of air resistance result in a flight path that deviates from a true parabola to a distorted parabola

e. g. shuttlecock
- lighter
- unusual shape
- increased air resistance

Question 11

horizontal component

Answer 11

horizontal motion of an object

during parabolic flight unaffected by air resistance to remain constant throughout flight

Question 12

vertical component

Answer 12

the upward motion of an object

during parabolic flight it is only affected by gravity which is why it decreases during flight

Question 13

resultant vector

Answer 13

add horizontal and vertical vectors together to get resultant vector