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