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