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