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