Module 5 - Section 1 [Projectile Motion]

Question 1

Describe stroboscope

Answer 1

A stroboscope is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary

Question 2

Define frame of reference

Answer 2

Frame of reference is an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points

Question 3

Recall Galileo’s contribution to projectile motion

Answer 3

Galilean Theory of Motion:
- Motion can be separated into independent components – horizontal and vertical
- Horizontal component experiences no acceleration; constant horizontal velocity
- Vertical component experiences constant acceleration – gravitational force

Question 4

Recall inherent assumptions when dealing with projectile motion

Answer 4

Inherent Assumptions:
- Air resistance is negligible
- The curvature of the Earth is negligible

Question 5

Recall properties of projectile motion

Answer 5

Properties:
- Forms a parabolic trajectory –> symmetric
- Zero velocity at turning points –> Maximum and minimum heights