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