Forces Vocab

Net Force

• The total force gotten if you multiply all the forces acting on an object in all directions

• The total acceleration gotten if you add up all the forces acting on an object in one direction

• The total force gotten if you add up all the forces acting on an object in all directions

• The total force gotten if you add up all the forces acting on an object in each direction

Gravity:

• A force that attracts all matter in the universe to all other matter. It gets stronger with more mass and weaker with distance.

• A matter that attracts all matter in the universe to all other forces. It gets stronger with more mass and weaker with distance.

• A force that attracts all matter in the universe to all other matter. It gets stronger with less mass and weaker with closeness.

• A force that attracts all matter in the universe to all other planets. It gets weaker with more mass and weaker with distance.

Weight:

• The amount of gravity caused by force on an object. Equal to the mass of the object.

• The amount of force caused by gravity on an object. Equal to the mass of the object times the strength of gravity.

• The amount of mass caused by gravity on an object. Equal to the force of the object times the strength of gravity.

• The amount of force caused by gravity on an object. Equal to the size of the gravity in space.

Force:

• an energy that causes a change velocity if not balanced. Has size and direction.

• an expression of gravity that causes a change in motion if not balanced.

• an expression of energy that causes a change in motion if not balanced. Has size and direction.

• an expression of friction that causes a change in acceleration if not balanced. Has size only.

Acceleration:

• Acceleration: a change in an object’s speed, motion or velocity.

• Acceleration: a change in an object’s speed.

• Acceleration: a change in an object’s energy.

• Acceleration: a change in an object’s force.

Normal Force:

• A force that comes from pulling on a surface. Always acts perpendicular to the surface being pushed.

• A force that comes from pushing on a surface. Always acts parallel to the surface being pushed.

• A motion that comes from pushing on a surface. Always acts perpendicular to the the force being created.

• An acceleration that comes from pushing on a surface. Always acts parallel to the surface being pushed.

Mass:

• a measure of how much force is in an object. Also a measure of how much an object resists energy.

• a measure of how much matter is in an object. Also a measure of how much an object resists accelerating.

• a measure of how much energy is in an object. Also a measure of how much an object resists velocity.

• a measure of how much weight is in an object. Also a measure of how much an object resists gravity.

Friction:

• A force that acts to slow objects down. Always acts in the direction opposite of motion.

• A force that acts to slow objects down. Always acts in the same direction as motion.

• A weight that acts to slow objects down. Always acts in the direction opposite of acceleration.

• A force that acts to speed objects up objects down. Always acts in the direction opposite of motion.

Balanced Forces:

• When a force is in balance and add up to 0 in a given direction so that it does not cause a change in motion.

• When multiple forces are in balance and add up to 10 N in a given direction so that it does not cause a change in motion.

• When multiple forces are in balance and add up to 0 in a given direction so that it does cause a change in motion.

• When multiple forces are unbalance and add up to 1 in a given direction so that it does cause a change in motion.

Reaction Forces:

• The force that only sometimes occurs whenever a force acts on an object in the opposite direction and the same amount.

• The force that automatically occurs whenever a force acts on an object in the opposite direction and the same amount.

• The acceleration that automatically occurs whenever a force acts on an object in the same direction and the same amount.

• The force that automatically occurs whenever a force acts on an object in the same direction and the same amount.