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