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