Exploring the 5 Main Types of Forces

The video tutorial covers five main types of forces: applied, gravitational, normal, frictional, and tensional. Each force is explained with examples, such as Bob pushing a box for applied force and the Earth's gravity for gravitational force. The tutorial also discusses how these forces are represented in free body diagrams and their significance in physics.

What is applied force?

• A force that acts at a distance

• A force exerted by a person or object on another object

• A force that opposes motion

• A force due to gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How is applied force commonly represented in free body diagrams?

• f_g or f_grav

• f or f_f

• f_t or F_tense

• f_n or F_Norm

What is the value of Earth's gravitational acceleration?

• 10 meters per second squared

• 9.8 meters per second squared

• 8.9 meters per second squared

• 9.8 meters per second

How do you calculate the gravitational force on an object?

• Multiply the mass of the Earth by the object's mass

• Multiply the object's mass by 9.8 meters per second squared

• Divide the object's mass by 9.8 meters per second squared

• Add the object's mass to 9.8 meters per second squared

Tags

NGSS.MS-PS2-2

What is normal force?

• A force that acts parallel to the surface

• A force due to gravity

• A force that acts perpendicular to the surface

• A force that opposes motion

How is normal force represented in free body diagrams?

• f_n or F_Norm

• f or f_f

• f_g or f_grav

• f_t or F_tense

What does frictional force do?

• Speeds up objects

• Acts perpendicular to the surface

• Opposes motion

• Acts at a distance

How is frictional force represented in free body diagrams?

• f_n or F_Norm

• f_g or f_grav

• f_friction

• f or f_f

What is tensional force?

• A force exerted by a person or object on another object

• A force that opposes motion

• A force exerted by a string, rope, wire, or cable

• A force due to gravity

How is tensional force represented in free body diagrams?

• f_t or F_tense

• f or f_f

• f_g or f_grav

• f_n or F_Norm