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