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