Physics Semester Review

Work & KE

100

What is the formula for work?

W = F times change in x

200

What is the formula for Kinetic Energy

KE = 1/2 mv²

300

What is the Work-Kinetic Energy Theorem?

w_net = Change in KE

400

What is the work done when you move a book 5.00 m in the +x direction while holding it up with a 10.0 N force in the +y direction?

0 Joules.

500

What is your initial KE of a 5.00 kg object if your Work_net = 50.0 J and your final velocity is 6.00 /ms

v_i = 4.00 m/s

Kinematics

100

What do the  kinematic equations measure?

Motion in one direction (any direction)

200

What do we assume about acceleration in K.E.?

That acceleration is constant

300

How many equations are there and what are they?

v = v₀ + at

x = x₀ + v₀t +.5at²

x = x₀ + .5 (v-v₀)t

v²=v₀² + 2a(x-x₀)

400

What is the acceleration of a car starting from rest that reaches a speed of 100.m/s in 9.00s? neglect friction

11.1m/s²

500

What is the displacement of a car that accelerates to velocity of 100.m/s in 9.00s from rest? neglect friction

450.m

Gravity & Forces

100

What is the range of gravity?

infinite

200

Draw a free body diagram of object that is accelerating in + x direction

Mr. Novack will draw one

300

What is the force due to the acceleration of gravity of a object that has a mass of 17.0kg on Earth? 

167N

400

What is the coefficient of kinetic friction of a box that has a mass of 1.0kg and is moving with a constant speed due to an applied force of 5.0N in +x direction?

.51

500

What is the force of a spring that is compressed .50 m passed its point of equilibrium in the negative x direction with a 5.0 N/m spring constant? find magnitude and direction

2.5 N in the + x direction

GPE & SPE

100

What causes PE?

An objects location or shape

200

What is the formula for GPE?

GPE = mgy

300

What is the formula for the Potential Energy due to a spring?

SPE = (1/2)kx²

400

What is the potential energy of a 9.00 kg ball suspended 18.0 m in the air?

1590 J

500

What is the PE of a spring that is compressed .50 m passed its point of equilibrium in the negative x direction with a 5.0 N/m spring constant?

.63 J

Anything

100

What is Mr. Novack's Favorite book?

World War Z

200

What is Mr. Novack's favorite video game?

Borderlands 2

300

What is the equation for the Conversation of Total Mechanical Energy?

ME_i = ME_f

KE_i + PE_i = KE_f + PE_f

400

What is Mr. Novack's biggest pet peeve?

being interrupted

500

How many watts are in a lightning bolt?

10¹⁰  or 10 Billion watts