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