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