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