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