Physics

Question 1

_______ describes motion in terms of displacements, velocity and acceleration. It simply describe “how” an object moves.

Answer 1

KINEMATICS

Question 2

______ is the study of force in relation to motion. It explain “why” an object moves.

Answer 2

DYNAMICS

Question 3

Is the term used in physics for motion in a straight line. It is often described in terms of the three quantities: displacement, velocity and acceleration.

Answer 3

TRANSLATIONAL

Question 4

_______ refers to the total length of path taken by an object in moving from its initial to final position.

Answer 4

DISTANCE

Question 5

_________ refers to the straight-line distance between an object’s initial and final positions, with direction towards the final position.

Answer 5

DISPLACEMENT

Question 6

______ how fast an object going. A scalar quantity that uses distance and is always positive.

•is the distance traveled by a body in a given time.

Answer 6

SPEED

Question 7

______ how fast an object is going in a certain direction. A vector quantity that uses displacement and is can be positive or negative.

•Is the time rate of change in position. It is a displacement of a body in a specified time interval.

Answer 7

VELOCITY

Question 8

is the rate of change of velocity because velocity is a vector quantity, a change in velocity can be change in magnitude, a change in direction, or a change in both magnitude and direction

Answer 8

Acceleration

Question 9

________ always refers to acceleration in the direction opposite to the direction of the velocity.

Answer 9

DECELERATION

Question 10

__________ is acceleration in the negative direction in the chosen coordinate system.

Answer 10

NEGATIVE ACCELERATION

Question 11

Is a push or a pull exerted by an object on another. It is a vector quantity because it has both magnitude and direction.

Answer 11

Force

Question 12

Force between two bodies that are in contact with each other is called ______ _____

Answer 12

CONTACT FORCE.

Question 13

Force that acts even if the interacting bodies are separated by a distance is called _______ ______

Answer 13

NON-CONTACT or ACTION- AT-A-DISTANCE FORCE.

Question 14

Was credited for being the 1ST to describe the massive objects and formulate the three laws of motion.

Answer 14

Isaac Newton

Question 15

• the tendency for an object to resist changes in motion.
  A moving object keeps moving.
  An object at rest stays rest.
• Mass is a measure of inertia. The greater the mass, the greater the inertia. The greater the inertia, the harder it is to change the state of motion of a body.

Answer 15

Inertia

Question 16

The net force of an object is equal to the product of its mass and acceleration.
One newton is equal to the force required to accelerate one kilogram of mass at one meter/second².

Answer 16

Force

Question 17

______ is a body on Earth is the measure of the force of gravity exerted by earth on it. It is a vector quantity and is always directed toward the center of the earth.

Answer 17

WEIGHT

Question 18

____ is the amount of matter a body contain. It is a scalar quantity.

Answer 18

MASS

Question 19

Every action has an equal and opposite reaction.

Answer 19

Law of interaction

Question 20

• any motion involving a dropped object that is only acted on by gravity and no other forces.

Answer 20

Free fall

Question 21

_________ means that the time required for the object to reach its maximum height equals the time for it to return to its starting point.

Answer 21

TIME SYMMETRY

Question 22

_________ shows that at any displacement above the point of release, the speed of the body during the upward trip equals the speed during the downward trip.

Answer 22

SPEED SYMMETRY