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