A) friction B) force C) gravitation D) magnetism E) work
A) work B) magnetism C) friction D) force E) gravitation
A) magnetism B) gravitation C) force D) friction E) work
A) balanced forces B) force C) magnetism D) work E) unbalanced forces
A) gravitation B) net force C) power D) force E) work
A) work B) force C) friction D) net force E) power
A) friction B) balanced forces C) power D) work E) unbalanced forces
A) newton B) friction C) gravity D) magnetism
A) it is placed on a flat surface B) an outside force acts on it C) a nearby star acts on it D) it continues in a straight line
A) a movement in all directions B) an equal and opposite reaction C) a force sending it backward D) a greater force pushing on it
A) its frame of reference changes B) its momentum changes C) Its position changes D) its mass and velocity changes
A) the relationship between the four basic elements B) how frame of reference influences movement C) Why all moving objects eventually stop moving D) The movement of objects on Earth and in space
A) the ground pushes against your feet when you run B) friction can be overcome for all objects C) gravitational forces are stronger on Earth than on the moon or other satellites D) People in a car move forward in their seats when the car stops quickly
A) law of universal gravitation B) inertia C) reaction force D) orbit
A) action force B) inertia C) orbit D) reaction force E) Law of Gravitation
A) Reaction force B) action force C) inertia D) orbit
A) position B) acceleration C) velocity D) momentum E) speed
A) acceleration of that object B) the speed of that object C) velocity of that object D) momentum of that object E) position of that object
A) velocity B) momentum C) position D) speed E) acceleration
A) velocity B) position C) acceleration D) speed E) momentum
A) a ball thrown into the air always falls back toward Earth B) a pole can be knocked down when a moving car hits it C) a spacecraft can travel in space for thousands of years D) trucks slow down when they are travelling uphill
A) a lever and a wedge B) A screw and a wedge C) a pulley and a screw D) a wedge and a pulley
A) a machine B) friction C) speed D) a magnet
A) a power B) a machine C) a current D) a force
A) magnetism B) force C) friction D) work E) power |