Lesson 1 Forces

Question 1

The gap between the initial position and the final position of an object.

Answer 1

Displacement

Question 2

The speed at which something moves in one direction.

Answer 2

Velocity

Question 3

The time rate of change of the velocity of an object.

Answer 3

Acceleration

Question 4

Characterized by push and pull applied to an object.

Answer 4

Force

Question 5

Influence that changes the motion of an object.
Present even of an object is not moving.
Cause of motions and movements we see everyday.

Answer 5

Force

Question 6

Refers to how strong the force is, hence the greater the magnitude the faster the velocity.

Answer 6

Magnitude

Question 7

Measure of magnitude in MKS or the meter kilogram second system

Answer 7

Newton (N)

Question 8

Measure of magnitude in CGS or centimeter gram second system

Answer 8

Dyne (DYN)

Question 9

Measure of magnitude in FPS or foot town second system

Answer 9

Pound (LBS)

Question 10

What system is the international system unit that is mostly used in measuring magnitude

Answer 10

Newton (N)

Question 11

Newton is the international system unit named after a physicist in mathematician _____

Answer 11

Isaac Newton

Question 12

Point to where the object goes are going to.

Answer 12

Direction

Question 13

Where your applying the force

Answer 13

Point of application

Question 14

Straight line passing through the point of application and is parallel to the direction of the force

Answer 14

Line of action

Question 15

A type of force wherein an object needs physical contact to another object

Answer 15

Contact Forces

Question 16

Refers to the force exerted by a person or an object towards another person or object. A type of contact force.

Answer 16

Applied force (F the symbol of Force, Applied Force)

Question 17

Refers to the force that acts opposite or against another object. A type of contact force.

Answer 17

Friction force denoted by the symbol F’F (the second F is a little one F sub F)

Question 18

The force that acts perpendicular to an object. Upward force. Supports the/an object as surface resists compression.

Answer 18

Normal force ( F’N)

Question 19

The force applied to a string rope chain cable and the like. Resists force that causes object to stretch.

Answer 19

Tension force (F’T)

Question 20

A type of force where objects do not touch or are not in contact with each other.

Answer 20

Non-Contact Forces

Question 21

The force that attracts object towards the earth. Downward force.

Answer 21

Gravitational force

Question 22

The force that is exerted on what we call a field of attraction or repulsion takes place between a magnet or a magnetic material.

Answer 22

Magnetic force

Question 23

In magnetic force it has two poles N and S.Tell if No attraction or attraction.
<—— S|N N|S ——> ______
<—— S|N S|N ——> ______

Answer 23

No Attraction
Attraction

Question 24

Are those which are at opposite directions and equal in magnitude

Answer 24

Balanced Forces

Question 25

Are in opposite direction and unequal in magnitude.

Answer 25

Unbalanced forces.

Question 26

The amount of force exerted and where the force is moving towards.

Answer 26

Magnitude and Direction

Question 27

When an object is at an equal force or magnitude the object moves _____
A.To the higher magnitude
B.To the lower magnitude
C.To the right or left
D.Upward or downward
E.None of the above

Answer 27

B.

Question 28

The result or sum of all forces that act on an object

Answer 28

Net force or resultant force

Question 29

When a net force is at 0 does the object move or no movement.

Answer 29

No movement

Question 30

When a net force is at 0 does the object move or no movement.

Answer 30

No movement

Question 31

When a net force is greater than zero there is movement or change in velocity. True or False

Answer 31

TRUE

Question 32

What is the formula of net force

Answer 32

FNet = ΣF

Question 33

A students are playing tug of war with team one exerting 900 newtons to the left and team to exerting a force of 1,200 newton to the right. Compute the net force

Answer 33

FNet=ΣF
FNet=F₁+F₂
FNet= -900N + 1200N
FNet= 300N