Question

forces and motion
force refers to any action or influence that causes an object to move. an object experiences a force when it is pushed or pulled by another object. an object can also experience a force because of the influence of a field, such as gravity or magnetism. match each term in the word box to its definition.
newton kinetic momentum centripetal mass inertia
acceleration gravity weight friction speed velocity
1 __________ a force that resists the movement of one surface against another.
2 __________ the amount of matter in an object.
3 __________ the type of force that keeps objects moving in a circle or arc.
4 __________ the force of attraction that exists between two objects.
5 __________ the distance covered within a certain unit of time.
6 __________ the rate at which an object changes its velocity.
7 __________ the rate at which an object is traveling in a certain direction.
8 __________ the energy of motion or the energy an object has as a result of its motion.
9 __________ the tendency of an object to remain at rest if at rest or to continue moving in a straight line if in motion.
10 __________ a unit of measurement for force.
11 __________ the amount of force exerted on an object due to gravity.
12 __________ the product of an object’s mass and its velocity.

Explanation:

1. Friction is the force that resists the movement of one surface against another.
2. Mass is defined as the amount of matter in an object.
3. Centripetal force is the type of force that keeps objects moving in a circle or arc.
4. Gravity is the force of attraction that exists between two objects.
5. Speed is the distance covered within a certain unit of time.
6. Acceleration is the rate at which an object changes its velocity.
7. Velocity is the rate at which an object is traveling in a certain direction.
8. Kinetic energy is the energy of motion or the energy an object has as a result of its motion.
9. Inertia is the tendency of an object to remain at rest if at rest or to continue moving in a straight line if in motion.
10. Newton is a unit of measurement for force.
11. Weight is the amount of force exerted on an object due to gravity.
12. Momentum is the product of an object’s mass and its velocity.

Answer:

1. friction
2. mass
3. centripetal
4. gravity
5. speed
6. acceleration
7. velocity
8. kinetic
9. inertia
10. newton
11. weight
12. momentum