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