PHYS165 / PHYS 165 Module 3: (Latest
Update 2026 ) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
Dynamics
the study of forces and their effects on motion
Force
any action that could change an object's state of motion.
(simple def: any kind of push or pull on an object. )
Is a force required to keep an object moving?
No
(a force is only required to change motion, not maintain constant velocity)
Is force a vector or a scalar?
Vector, it has magnitude and direction
(The harder a force is applied, the larger the magnitude)
If all forces are balanced in all directions, then the object's motion or rest WILL
OR WILL NOT change?
will not change
What is the agent of a force ?
the specific, immediate, and identifiable cause of a force
, Can a force exist without an agent?
No
Forces are measured in....
Newton (N)
Two types of forces
Contact forces and field forces
Contact forces
Forces that are touching the object
Ex: tension in a rope, buoyancy, friction, pushing, pulling, hitting/kicking
Field force
Forces that are not touching the object
ex: gravity, magnetism, electric force
What types are these forces:
1. Magnetism
2. Tension in a rope
3. Buoyancy
4. Friction
5. Gravity
1. Field
2. Contact
3. Contact
Update 2026 ) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
Dynamics
the study of forces and their effects on motion
Force
any action that could change an object's state of motion.
(simple def: any kind of push or pull on an object. )
Is a force required to keep an object moving?
No
(a force is only required to change motion, not maintain constant velocity)
Is force a vector or a scalar?
Vector, it has magnitude and direction
(The harder a force is applied, the larger the magnitude)
If all forces are balanced in all directions, then the object's motion or rest WILL
OR WILL NOT change?
will not change
What is the agent of a force ?
the specific, immediate, and identifiable cause of a force
, Can a force exist without an agent?
No
Forces are measured in....
Newton (N)
Two types of forces
Contact forces and field forces
Contact forces
Forces that are touching the object
Ex: tension in a rope, buoyancy, friction, pushing, pulling, hitting/kicking
Field force
Forces that are not touching the object
ex: gravity, magnetism, electric force
What types are these forces:
1. Magnetism
2. Tension in a rope
3. Buoyancy
4. Friction
5. Gravity
1. Field
2. Contact
3. Contact
