which law,is this all object resist having their motion changed.
A.1st law
B.2nd law
C.3rd law
D.all the above
What is A.
100
what is 100n to the right and 50 +75n to the left what is the net force
A.33n
B.42n
C.24n
D.none the above
What is D
100
what is kinetic energy
A.energy of motion
B.an object at rest
C.the sum of all energy
D.controls the amount
What is A.
100
the initial for potential energy is ___________
What is PE
100
controls the amount of change that can occur within a system without enough energy, change can not occur
A.potential energy
B.energy
C.energy transformation
D. joule
What is B.
200
what is inertia?
What is the tendency of an object to continue what it is currently doing
200
it would probably be the easiest to ride a bicycle acroos
A.gravity
B.sand
C.grass
D.sidewalk
What is d
200
the two main forces of energy in a system is _______ and _______
What is potential energy and kinetic
200
what is an object that shows potential energy
A.a cup on a desk
B. a ball rolling down the hill
C.a person walking
What is a
200
a unit used to measured energy.
A.potential energy
B.energy
C.kinetic energy
D.joule
What is D
300
the amount of force needed to move an object is measured in _________
What is newtons
300
the force that always act opposite to the direction of the motion of an object is called
A.inertia
B.gravity
C.friction
D.none the above
What is c
300
kinetic energy relate to
A.heat
B.motion
C.light
What is b
300
which of the following has the most potential energy
A.a car at the top of a hill
B.a car speeding down the hill
C.a person running down the hill
D.none the above
What is a
300
what is a net force?
A. a push or a pull
B. the path of an object
C. change in direction or speed
D. overall force acting on a object
What is D.
400
why is it difficult to move a ball from one side to the other
What is friction
400
you would not use_____to find the acceleration of an object
What is weight
400
what is an example of an example of kinetic energy at work
A.a ball lodged in a tree
B.a car in a garage
C. a frisbee flying through the air
What is c
400
a physical variable is ______________________
What is something measurable that can change
500
why is it harder to push a van filled with bowling balls then it is to push a van with basketballs
What is the mass of the bowling ball is greater than the mass of the basketballs
500
newtons first describe gravity while watching _________
A.ball rolling
B.jumping on the bed
C.apple falling
D.none the above