Forces
The force that apposes thrust
The law that explains why a person on a skateboard continues to move forward if the skateboard suddenly stops after hitting a rock.
What is Newton's first law or the Law of Inertia?
A ball has an initial velocity of 4 m/s and a final velocity of 8 m/s. It travels two seconds. Its acceleration is________.
What is 2 m/s2?
The scientist who developed the laws of motion.
Who is Sir Isaac Newton?
This is important in the shop to prevent foot injury.
What is wearing closed-toed shoes?
Force is measured with this unit in the metric system.
What are Newtons?
A stationary ball that only moves after being kicked is an example of this law. (Hint: This law states that an object at rest will remain at rest unless acted upon by an unbalanced force)
What is Newton's first law?
This is determined by an object's initial velocity, final velocity, and time traveled.
What is an object's acceleration?
According to Newton's 3rd law, all actions and reactions must be these TWO things.
What is equal and opposite?
A band saw is used to make these types of cuts.
What are rough cuts?
Objects with more mass are harder or easier to set into motion.
What is harder?
This law explains why a CO₂ dragster remains at rest until the CO₂ cartridge is released, and why it keeps moving until air resistance and friction slow it down.
What is Newton's 1st law?
Straws were placed in the axle holes to reduce this.
What is friction?
Forces that cause a change in the motion of an object.
What are unbalanced forces?
It is important to make sure you do this to your car after you are finished cutting it out. It increases the aerodynamics of your car.
What is sand and paint?
The total amount of force acting on an object.
What is net force?
If your shoes have more aggressive tread, will it increase or decrease friction?
Speed and direction of a CO2 dragster Car.
What is velocity?
When forces on an object are moving in opposite directions, you must ________ them to find the net force
What is subtract
When using a scroll saw or band saw, you should never put your hand here.
What is in front of the blade?
It is a pushing force that opposes drag provided by the puncturing of a CO2 cartridge.
What is thrust?
When the CO₂ cartridge is punctured, it pushes gas backward out of the car. According to this law, the car moves forward with an equal and opposite force.
What is Newton's 3rd Law?
A pool ball roll rolls the other direction when the cue ball hits it is and example of which law?
The race car track that was the slowest had a greater amount of this.
What is friction?
The tool that loosens the drill bit for removal.
What is a chuck?