Balanced and Unbalanced Forces

Balanced forces

• are never moving

• have no change in motion

• cause a chang in motion

Tags

NGSS.3-PS2-1

Which has balanced forces

• The Earth orbiting the sun at a constant speed

• A car driving at a constant speed in the straight line

• A car coming to a stop at a red light

If an object is not moving

• There are no forces acting on it

• The forces are balanced

• the forces are unbalanced

When an object is falling the forces are ________ because__________[SELECT 2]

• balanced

• unbalanced

• because it increases speed as it falls

• because the forces are equal

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

When an car comes to a stop the forces are ________ because__________[SELECT 2]

• balanced

• unbalanced

• because it decreases speed as it stops

• because the forces are equal

Tags

NGSS.MS-PS2-2

Which 2 are unbalanced forces?

• Moving at a constant speed in a straight line

• An apple falling from a tree

• A pencil sitting on a desk

• A car starting to move at a green light

Tags

NGSS.MS-PS2-2

Why does a book on a table not move?

• No forces are acting on the book
• Gravity is the only force acting on the book
• Forces of the table pushing up and gravity pulling down are balanced

Tags

NGSS.MS-PS2-4

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Tags

NGSS.MS-PS2-2

What is the net force?

• 400 N Up
• 400 N Down
• 800 N Down

Tags

NGSS.MS-PS2-2

Which word best describes the image?

• Balanced

• Unbalanced

Tags

NGSS.3-PS2-1