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