Physics Rotation One Jeopardy

Physics Concepts and the Kinematic Equations

100

The variable used for initial Velocity?

V_o

200

The definition of Velocity?

v = ∆x / ∆t

300

What are the four kinematic equations?

1. v = v₀ + at

2. Δx = (v + v₀/2)t

3. Δx = v₀t + 1/2at²

4. v² = v₀² + 2aΔx

400

A car slows down from 28 m/s to rest in a distance of 88 m. What was its acceleration?

a = -4.45 m/s²

Free Fall

100

The Acceleration of Gravity?

9.8 m/s²

200

An object's velocity at its maximum height?

0 m/s

300

True or False: In free fall scenarios, acceleration is always positive

False

400

What free fall scenario is this equation from? --> ∆y = (v_o/2)t

Equation 3 for the thrown upward scenario

Vectors

100

What are v_x and v_y the components of?

The components of a vector

200

This describes a quantity with both direction and magnitude

What is a vector quantity

300

How do you find the v_x and v_y componets?

vcos⍬ and vsin⍬

400

Find the components

(problem on doc)

V_x = 6.93 

V_y = 4

Projectile Motion

100

A ball is thrown horizontally off a 120m high cliff with a speed of 25 m/s. What was the final velocity?

V = 54.6 m/s

200

A projectile is fired at 40 m/s at an angle of 35° from the top of a 120m high cliff. How far from the base of the cliff did will it land?

Δx = 256.1m

300

What formula is this --> Δx = V₀² sin(20)/g ?

Horizontal range formula

400

What is the ideal release angle to maximize horizontal displacement?

45°

Newton's Laws

100

This laws states that "Every object continues in it's state of rest or uniform velocity as long as no net force acts on it"

Newtons First Law of Motion

200

This is the force that a taut cord or force exerts on an object.

Tension Force

300

What formula is this --> a = ΣF/M ?

Net Force Formula

400

This is tendency of an object to change (or not to change) it's state when a force is applied to it

Inertia