A) magnetism B) friction C) force D) work E) gravitation
A) magnetism B) force C) gravitation D) work E) friction
A) force B) friction C) gravitation D) magnetism E) work
A) work B) force C) balanced forces D) magnetism E) unbalanced forces
A) power B) net force C) gravitation D) work E) force
A) friction B) net force C) force D) work E) power
A) unbalanced forces B) balanced forces C) friction D) power E) work
A) friction B) gravity C) newton D) magnetism
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) 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 mass and velocity changes B) its momentum changes C) Its position changes D) its frame of reference changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) the relationship between the four basic elements 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) law of universal gravitation B) reaction force C) orbit D) inertia
A) Law of Gravitation B) action force C) reaction force D) inertia E) orbit
A) orbit B) Reaction force C) inertia D) action force
A) speed B) momentum C) velocity D) position E) acceleration
A) acceleration of that object B) position of that object C) velocity of that object D) the speed of that object E) momentum of that object
A) momentum B) position C) speed D) velocity E) acceleration
A) velocity B) speed C) acceleration D) momentum E) position
A) a spacecraft can travel in space for thousands of years B) trucks slow down when they are travelling uphill 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 wedge and a pulley B) A screw and a wedge C) a lever and a wedge D) a pulley and a screw
A) speed B) a machine C) friction D) a magnet
A) a machine B) a force C) a current D) a power
A) work B) force C) friction D) power E) magnetism |