4.3 Projectile Motion

Question 1

Projectile motion

Answer 1

Movement of either an object or human body as they travel through the air

Question 2

Factors affecting the horizontal displacement of a projectile

Answer 2

Angle of release
Speed of release
Height of release

Question 3

Horizontal displacement

Answer 3

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

Question 4

Angle of release

Answer 4

Optimum angle dependent upon release height and landing height

45 degrees when rh and lh are the same

If rh higher than lh then optimum angle needs to be less than 45 degress (shotput 26-38)

If lh higher than rh then angle of release needs to be more than 45 degrees

Question 5

Speed of release

Answer 5

The greater the release velocity of a projectile, the greater horizontal displacement

Question 6

Height of release

Answer 6

A greater height of release also results in an increase in horizontal displacement

Question 7

Parabola

Answer 7

A curve with matching left and right hand sides is a true parabola if not its a distorted parabola

Shotput is a parabolic flight path
Shuttlecock is a non parabolic flight path

Weight and gravity effect projectiles whilst in the air

Question 8

Vector components of parabolic flight

Answer 8

Horizontal component - horizontal motion of an object

Vertical component - upward motion of an object

On a graph the vertical component always has a larger arrow except at the highest flight point where their is no vertical component