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