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