Motion and Machines Review Crossword Puzzle

QUESTIONS LIST:

• work : when a force acts upon an object to make it move (force x distance = ?)
• motion : the change in a position of an object
• force : a push or pull that causes an object to have a change in movement or direction
• friction : the resistance to motion when two objects rub against one another
• first : newton's _ law states - an object in motion stays in motion
• speed : the rate at which an object travels in a certain amount of time (distance + time = ?)
• distance : how much ground has been covered during the movement of an object
• acceleration : any change in direction and/or speed, either faster or slower
• velocity : the speed and direction of an object
• second : newton's _ law states the greater the mass of an object, the greater force needed to accelerate the object
• mass : the measurement of how much matter is in an object
• gravity : a force of attraction between two masses
• third : newton's _ law states when an object pushes on another object, the object being acted upon pushes back with equal force
• potential : this is energy an object has stored because of its position or state
• kinetic : this energy an object has due to its motion
• conservation : the law of _ of energy states the amount of energy doesn't change, it is only converted to other forms
• simple : a _ machine is a mechanical device with few or no moving parts that is used to simplify the motion of an object and reduce the needed force
• complex : a _ machine is a mechanical device made of two or more simple machines.