Forces: Basics and Diagrams

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

• Balanced
• Unbalanced

Are forces balanced or unbalanced when a marble speeds up rolling down a ramp?

• Balanced
• Unbalanced

Tags

NGSS.MS-PS2-2

Ted is trying to move a fridge through his house, he gets stuck on a carpet and even though he is pushing the fridge, it is not moving. What force is acting against him?

• gravity

• friction

• applied force

• normal force

What is the name of the missing force?

• gravity

• normal force

• applied force

• frictional force

Tags

NGSS.MS-PS2-4

What is the name of the missing force?

• frictional force

• normal force

• gravity

• applied force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the name of the missing force?

• applied force

• gravity

• friction

• normal force

Tags

NGSS.MS-PS2-2

What is the name of the missing force?

• tension force

• gravitational force

• normal force

• applied force

Tags

NGSS.MS-PS2-2

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

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• 
• 
• 

Tags

NGSS.MS-PS2-2

A hockey puck glides to the right across the ice at a constant speed. What would the force diagram for this look like?

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• 
• 
• 

Tags

NGSS.MS-PS2-2

A downward-moving skydiver who has just opened the parachute is slowing down. Which force diagram shows this sitation?

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• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS3-5