A-LEVEL PHYSICS: 4.3.4: Projectile Motion (SaveMyExams)

Question 1

What is a ‘Projectile’?

Answer 1

A Projectile is a Particle moving freely under Gravity, in a 2D plane.

Question 2

An object is sent into a Projectile Motion trajectory, with a Resultant Velocity (___), at an angle θ to the horizontal.

Answer 2

Initial Velocity, u

Question 3

Any object moving through the air experiences ___ ___, which creates a ___ Force.
What is this Force caused by?

Answer 3

Air Resistance, Drag
This Drag Force is caused by Friction between the Air Molecules and the Object.

Question 4

The Drag Force Acts in the ___ Direction to the Direction of ___ of the Object.

Answer 4

Opposite, Motion

Question 5

The Horizontal Component of Drag Decreases the Horizontal ___ & ___.

Answer 5

Velocity, Displacement

Question 6

The Vertical Component of Drag Decreases the ___ ___.

Answer 6

Maximum Height.

Question 7

What is a ‘Fluid’?

Answer 7

A Fluid is a Liquid or Gas.

Question 8

Two main Factors that Affect the Motion of an Object. Explain them: (2)

Answer 8

-Mass: Greater Mass = Greater Weight Force.

-Surface Area: Greater Surface Area = Larger Air Resistance Drag Force.