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