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