Forces and Motion
Provide 3 Contact Forces
Friction, Tension, Normal, Applied, Spring, Air Resistance
What are the units we use for distance?
(prefix)meters
In a system schema, how do you represent something that is outside the system?
Place it outside the system boundary
Force = what? (equation)
mass x acceleration
What 'holds' most things together in space?
Gravity
Provide 2 Long Range Forces
What are the units we use for mass?
In an LOL chart, how do you represent energy leaving the system?
Quantified arrows exiting the middle 'O'
If the mass of an object is 100kg, how much force must be used to accelerate the object at 2.5 m/s2?
250N of Force
If an object experiencing unbalanced forces, what are the two possible types of motion?
Acceleration
Deceleration (Negative Acceleration)
Units for Force
Newtons
In an LOL chart, how do you check for Law of Conservation of Energy?
How fast would a 60 kg object accelerate if 20N of force were applied to it?
0.33m/s2
Micro, gamma, visible light, radar are all examples of what?
Waves
If an object experiencing balanced forces, what are the two possible types of motion?
Moving at constant velocity
Not moving at all
Units for acceleration
m/s2
Draw a system schema for a situation where a track and field runner falls over a hurdle.
*Answers Vary, need to include:
Runner, hurdle, Earths Field with circles and arrows connecting them with a system boundary
How much mass would an object have to have if you pushed it with 200N of force and accelerated it at 25 m/s2?
8 kg
energy
If an object is flying through the air, what forces are acting on it?
Fg, Fair
Units for velocity
m/s
Energy is not created nor destroyed is stated in what 'Law'
Law of Conservation of Energy
In the scenario where an object decreases in velocity, what two things could have happened?
decrease in force acting on object
In what pattern do most things orbit around our sun?
Elliptical Pattern (Not Circular)