A) friction B) force C) magnetism D) gravitation E) work
A) gravitation B) magnetism C) work D) friction E) force
A) work B) gravitation C) force D) magnetism E) friction
A) balanced forces B) work C) unbalanced forces D) force E) magnetism
A) net force B) work C) force D) gravitation E) power
A) force B) friction C) net force D) power E) work
A) unbalanced forces B) power C) work D) balanced forces E) friction
A) gravity B) newton C) magnetism D) friction
A) it continues in a straight line B) it is placed on a flat surface C) a nearby star acts on it D) an outside force acts on it
A) a greater force pushing on it B) an equal and opposite reaction C) a force sending it backward 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) the relationship between the four basic elements C) Why all moving objects eventually stop moving 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) 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) reaction force B) inertia C) orbit D) law of universal gravitation
A) action force B) reaction force C) Law of Gravitation D) inertia E) orbit
A) orbit B) inertia C) Reaction force D) action force
A) acceleration B) speed C) momentum D) position E) velocity
A) position of that object B) acceleration of that object C) velocity of that object D) the speed of that object E) momentum of that object
A) momentum B) velocity C) speed D) position E) acceleration
A) position B) speed C) velocity D) momentum E) acceleration
A) a pole can be knocked down when a moving car hits it B) a spacecraft can travel in space for thousands of years C) trucks slow down when they are travelling uphill D) a ball thrown into the air always falls back toward Earth
A) a pulley and a screw B) A screw and a wedge C) a wedge and a pulley D) a lever and a wedge
A) speed B) a machine C) friction D) a magnet
A) a machine B) a current C) a force D) a power
A) friction B) power C) work D) force E) magnetism |