Classical mechanics quiz

A little classical mechanics quiz I made. There’s some smol bits of math, but nothing too serious. I hope this provides a decent survey of a high school level mechanics course. Of course, those typically involve more math.

use g=10 for simplicity. I designed this to not require a calculator. If you need one, that’s quite alright. The numbers were selected to be nice and round.

Created by: Nathan

What is Newton’s first law?
- F= ma
- An object in motion will remain in motion and an object at rest will remain so unless acted on by a force
- Every action has an equal and opposite reaction
- We are held to the ground by gravity
When an object is at rest on a surface, what force is holding it up?
- Gravity
- Friction
- Centrifugal force
- Normal force
Which of the following is not a real force?
- Centrifugal force
- Gravitational force
- Electromagnetic force
- Frictional force
Which of the following has units of force?
- Mass
- Acceleration
- Weight
- Velocity
What is the equation for kinetic energy?
- mv^2
- 1/2 mv^2
- mv
- 1/2 mv
On earth, an object is initially at rest and begins to free fall. After 1 second, how far has it fallen to the nearest meter?
- 1 meter
- 2 meters
- 5 meters
- 10 meters
What is work?
- Force times distance
- Force per unit area
- Energy times time
- Acceleration squared
A 10 kg object and a 5 kg object are hung from opposite ends of a pulley. How fast does the 10 kg object accelerate, if upwards is positive?
- 3.33 m*s^-2
- -3.33 m*s^-2
- 5 m*s^-2
- -5 m*s^-2
If a car can brake at 0.75 g, how much distance does it need to stop from 30 m/s?
- 30 m
- 40m
- 60 m
- 120 m
If we neglect air resistance, how far will a ball travel if it was launched from the ground at 10* sqrt(2) m/s at a 45 degree angle?
- 10 m
- 20 m
- 10 sqrt(2) m
- 20 sqrt(2) m
Which value is typically larger between static and kinetic friction?
- Static friction
- Kinetic friction
- They are always the same
- They aren’t the same, but each is larger about half of the time
What is the maximum slope that an block will remain at rest on if the coefficient of static friction is 1?
- If there is any slope, the object will slide
- 30 degrees
- 45 degrees
- It will stick to a vertical wall
What is the rotational inertia of a thin rod about its center?
- ML^2
- 1/3 ML^2
- 1/4 ML^2
- 1/12 ML^2
When you’re spinning on a merry-go-round, why do you spin faster when you pull yourself towards the center
- Conservation of angular momentum
- Conservation of mass
- Conservation of energy
- Centrifugal force
Two objects are placed at the top of the same slope. One slides down without fRuction, the other rolls down without sliding. Which has a higher velocity at the bottom?
- Both have the same velocity
- The sliding object
- The rolling object

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