A) gravitation B) work C) force D) magnetism E) friction
A) force B) magnetism C) friction D) work E) gravitation
A) friction B) gravitation C) work D) force E) magnetism
A) work B) unbalanced forces C) balanced forces D) magnetism E) force
A) gravitation B) work C) net force D) power E) force
A) force B) power C) net force D) work E) friction
A) work B) balanced forces C) power D) unbalanced forces E) friction
A) magnetism B) gravity C) friction D) newton
A) a nearby star acts on it B) it continues in a straight line C) an outside force acts on it D) it is placed on a flat surface
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 mass and velocity changes B) Its position changes C) its frame of reference changes D) its momentum changes
A) The movement of objects on Earth and in space B) Why all moving objects eventually stop moving C) how frame of reference influences movement D) the relationship between the four basic elements
A) the ground pushes against your feet when you run B) friction can be overcome for all objects C) gravitational forces are stronger on Earth than on the moon or other satellites D) People in a car move forward in their seats when the car stops quickly
A) inertia B) orbit C) law of universal gravitation D) reaction force
A) orbit B) inertia C) action force D) reaction force E) Law of Gravitation
A) orbit B) Reaction force C) action force D) inertia
A) velocity B) momentum C) position D) speed E) acceleration
A) position of that object B) the speed of that object C) momentum of that object D) velocity of that object E) acceleration of that object
A) position B) velocity C) acceleration D) momentum E) speed
A) acceleration B) position C) velocity D) momentum E) speed
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) speed B) a machine C) a magnet D) friction
A) a force B) a current C) a power D) a machine
A) force B) work C) power D) magnetism E) friction |