SCIENCE (NATURE OF FORCE)

Question 1

A push or a pull exerted by one object on another body.
The effect of force is to tend to change the state of motion of the body on which it acts.
It is a vector quantity
Represented by SI unit “N

Answer 1

FORCE

Question 2

Ordinary push and pull forces and friction

Answer 2

NON-FUNDAMENTAL FORCES

Question 3

Gravitational Force, Magnetic Force, Strong Nuclear Force, and Weak Nuclear Force

Answer 3

FUNDAMENTAL FORCES

Question 4

The force of attraction between objects by virtue of their masses and is responsible for weights of the bodies on Earth as well as the motion of the planets

Answer 4

GRAVITATIONAL FORCE

Question 5

Plays a role in the radioactive decay of some nuclei

Answer 5

WEAK NUCLEAR FORCE

Question 6

An attractive or repulsive force between charged bodies

Answer 6

ELECTROMAGNETIC FORCE

Question 7

A force that holds the constituents of the nucleus of an atom together

Answer 7

STRONG NUCLEAR FORCE

Question 8

forces that result from direct physical contact between two objects.

Answer 8

CONTACT FORCES

Question 9

the quantity of matter a body contains

Answer 9

MASS

Question 10

forces that do not involve direct physical contact

Answer 10

NON-CONTACT FORCE

Question 11

MASS IS A WHAT QUANTITY?

Answer 11

SCALAR

Question 12

SI UNIT FOR MASS?

Answer 12

KG

Question 13

the force on a body due to gravity

Answer 13

WEIGHT

Question 14

WEIGHT IS WHAT QUANTITY?

Answer 14

VECTOR

Question 15

SI UNIT FOR WEIGHT?

Answer 15

N- NEWTON

Question 16

is capable of changing the state of motion of an object.

Answer 16

NETFORCE

Question 17

is the rate of change in velocity of a moving object per unit of time

Answer 17

ACCELERATION

Question 18

is the description of the motion of an object in terms of both speed and direction.

Answer 18

VELOCITY

Question 19

are equal forces acting in opposite directions; thus, they have zero net force.

Answer 19

BALANCE FORCE

Question 20

has nonzero net force; thus it produces acceleration

Answer 20

UNBALANCE FORCE

Question 21

EXAMPLES OF BALANCED FORCE

Answer 21

Resting against a wall.
Lying down.
Aircraft in a steady-flight.
Floating in water.
Standing in ground.
Tug of war equally balanced teams.
Fruit hanging from a tree.
Ball hanging from a rope.

Question 22

EXAMPLE OF UNBALANCE FORCE

Answer 22

A group of kids winning a tug of war game,
A car accelerating, braking, or turning,
An object sinking in water,
Riding a skateboard,
Turning a cartwheel,
A fruit dropping from a tree,
A moving train that slows down prior to its station,
An object getting knocked over by the wind, and
An aircraft in a steady flight.