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