Exam 1

Module 6Exam 1

Instructions

You can refer to the following formulae at any time. 

Newton's First Law ("Law of Inertia" ): If F = 0, then v is constant
Newton's Second Law: F = ma
Newton's Third Law: "action = reaction," "forces come in pairs"

Linear (translational) motion:
distance traveled = d = (average speed) x time
total displacement = d = (average velocity) x time
v_f = v₀ + at
d = v₀t + 0.5at²
work done = force x (distance moved in the direction of the force)
power = energy/time
kinetic energy = 0.5 mv²
gravitational potential energy = mgh

Rotational motion:
motion in a circle: arc length d = rθ,  centripetal acceleration a = v²/r

Gravity:
Newton's law of gravity: F = Gm₁m₂/r²
Take the acceleration due to gravity near the Earth's surface to be g = 10 m/s²

Trigonometry:
sin 45⁰ = cos 45⁰ = 1/√2 = 0.71
sin 30⁰ = cos 60⁰ = 0.5,  cos 30⁰ = sin 60⁰ = (√3)/2 = 0.866
sin 37⁰ = 0.6,  cos 37⁰ = 0.8

Guidelines and Grading

This is a closed-book exam. Using any book, notes, or other form of outside assistance is not allowed. You may use:

• Scratch paper that is entirely blank at the start of the exam
• Writing implements
• The on-screen scientific calculator that can be accessed from the 24/7 Proctoring Support toolbar

You are not permitted to use any other type of calculator or any electronic device (cell phone, smart watch, headphones, etc.) except the computer on which you are taking the test. You must remain in front of your computer for the duration of the exam. No bathroom breaks are permitted. Failure to follow these instructions could result in a violation.

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