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