Real time problems
If an object is thrown 4m with a work of 10J what is the force the object was thrown with?
4.5N
What is the easier way to find velocity final?
what is vf=vi+at
What is the force that slows down an object due to the texture of the floor?
What is force of friction
On an acceleration time graph what does the area under the line represent?
The area under the line represents the acceleration that it went at during those times
Because of diffences in gravity, how much will 200lbs man weigh on Mar?
76lbs
Two objects were lifted by a machine. One object had a mass of 2kg and was lifted with a speed of 2m/s. The other had a mass of 4kg and was lifted at a speed of 3m/s
Which object will have more kinetic energy while being lifted?
The second object has more kinetic energy
How do you find distance using velocity time and acceleration?
what is d=vit-1/2(at^2)
What is the upward force that is seen with objects on top of tables?
What is normal force
On a distance time graph what does the slope represent?
The slope would represent velocity
Ignoring air resistance when a bowling ball and feather are dropped which will land first?
They will land at the same time
If a ball is thrown with a velocity of 8m/s and has a mass of 5kg what is its KE?
40J
how do you find final velocity using initial velocity acceleration and distance?
What is vf^2=vi^2+2ad
what is gravitational potential energy?
It is the stored energy that an object has before being dropped and feeling the effects of gravity
On a distance time graph what does the area under the line represent?
It represents the distance traveled over time
What’s is Newton’s first law
An object in motion will stay in motion and an object at rest will stay at rest
A ride at the carnival is at the top of a 72mnhill and weighs 966N. What energy does the ride have at this moment?
The ride has potential energy
What is the most basic way of finding average velocity?
What is vi=d/t
How do you define force applied?
Force applied is the force that goes onto an object that is applied through either an object in motion, animal, or machine.
on a velocity time graph what does slope represent?
Slope represents acceleration on a velocity time graph
What is Newton’s third law?
An object with force will have an opposite and equal reaction
A spring has a mass of 0.020 kilogram and a spring constant of 150 newtons per meter. A force is applied to the toy to compress the spring 0.050 meters. What is the PE stored in the spring
PEs=½(150N/m)(0.05m) PEs=0.1875J
What is the most basic way of finding acceleration?
What is V/t
What is force of gravity?
It’s the amount of force that gravity pushes onto an object which is also called weight
On a velocity time graph what does the area under the line represent?
The area under the line represents the velocity it went at during those periods of time
mass is not affe based on gravity.