A) magnetism B) force C) friction D) work E) gravitation
A) gravitation B) force C) magnetism D) work E) friction
A) work B) magnetism C) gravitation D) force E) friction
A) magnetism B) balanced forces C) unbalanced forces D) work E) force
A) power B) work C) force D) gravitation E) net force
A) friction B) net force C) work D) power E) force
A) unbalanced forces B) friction C) work D) power E) balanced forces
A) magnetism B) gravity C) friction D) newton
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 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 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 relationship between the four basic elements C) Why all moving objects eventually stop moving D) The movement of objects on Earth and in space
A) friction can be overcome for all objects B) gravitational forces are stronger on Earth than on the moon or other satellites 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) inertia B) law of universal gravitation C) orbit D) reaction force
A) action force B) inertia C) reaction force D) Law of Gravitation E) orbit
A) orbit B) Reaction force C) action force D) inertia
A) speed B) position C) momentum D) velocity E) acceleration
A) the speed of that object B) acceleration of that object C) velocity of that object D) position of that object E) momentum of that object
A) momentum B) acceleration C) position D) speed E) velocity
A) speed B) acceleration C) momentum D) velocity E) position
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 wedge and a pulley B) A screw and a wedge C) a pulley and a screw D) a lever and a wedge
A) speed B) friction C) a machine D) a magnet
A) a force B) a power C) a machine D) a current
A) force B) work C) power D) magnetism E) friction |