Horizontal -parallel to the plane of the horizon; at right angles to the vertical.
Parabola -Motion of Projectiles.
Projectile -A projectile is any object that once projected or dropped stays in motion.
Range -the max distance that a charged particle as a proton can penetrate.
Resultant -the vector sum of two or more vectors.
Trajectory -The line or curve described by an object moving through space.
Vertical –having an alignment, such that the top is directly above the bottom.
Vector -a quantity having direction as well as magnitude.
Δ – delta (change in or difference)
Δx = (1/2) (v1+v0) t x – position (meters)
v – velocity (meters per second)
Δx = v0t + (1/2) a t2 t – time (seconds)
v12 = v02 + 2 a (Δx ) a – acceleration
ag – acceleraton due to gravity
v1 = v0 + a t 9.8 m/s2 at Earth’s surface
SOHCAHTOA sine / cosine / tangent - applied to right triangles
- Vertical and horizontal velocities do NOT affect each other
- Scalar is a measuring quantity, a magnitude of some-sort. ex: size, distance, speed
Vector is a magnitude and direction. ex: velocity, displacement
θ – “theta” = angle
sin θ = opp
cos θ = adj
tan θ = opp
Big Ideas of Unit
Describe the ideal conditions for projectile motion
Predict how air resistance will affect a projectile
Explain how the components of motion act independently
Diagram and calculate the horizontal and vertical components of a projectile
Diagram and calculate initial and final velocity of a projectile
Diagram and calculate the range and maximum height of a projectile