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