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