Science Q4 W1 - Projectile Motion: A Two-dimensional Motion

Question 1

*Any object that continues in motion by its own inertia and is influenced only by the downward force of gravity (and air resistance)

*an object given an initial velocity thrown/projected to be acted upon solely by gravity in a parabolic (curved-like) path

Answer 1

Projectile

Question 2

The path that the projectile follows

Answer 2

Parabola

Question 3

A numerical value in degrees (°) expressing the orientation of the projectile to be thrown/projected

Answer 3

Angle (0)

Question 4

The parabolic (curved-like) path taken by a projectile

Answer 4

Trajectory

Question 5

The vertical distance from the projectile to the earth’s surface

Answer 5

Height

Question 6

Horizontal distance covered by the projectile

Answer 6

Range

Question 7

Horizontal velocity responsible for the projectile to travel at a horizontal distance

Answer 7

Vx

Question 8

Vertical velocity responsible for the projectile to travel at a vertical distance

Answer 8

Vy

Question 9

*Neglect air resistance

*There is a constant horizontal velocity (
(Vx)

*Horizontal acceleration is 0. ax=0

*Horizontal distance is called as RANGE (dx)

*If there is no force acting on an object, then it will continue moving at a constant speed in the same direction. There wil be no change in its velocity. Distance will increase the same amounth with each second

Answer 9

Horizontal motion (X-component)

Question 10

*The force acting upon in this motion is the force of gravity (g=ay=ag (g= -9.8m/s^2)

*Vertical velocity is not constant (Vy)

*Vertical distance is called as the HEIGHT (h=dy)

Answer 10

Vertical motion (Y-component)

Question 11

*An object in free fall is only acted on by gravity

*Acceleration due to gravity is 9.8 m/s^2

*Distance covered increases with each second

Answer 11

Free fall revisited