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