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