Force & Speed

Newtons 1st law of motion states:

• An object in motion will stay in motion and an object in rest will stay in rest unless acted upon by and unbalance force.
• For every action there is an equal and opposite reaction. 
• Acceleration is produced when a force. acts on a mass. 
• The greater the mass  the greater the amount of force needed to change its motion. 

If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

Tags

NGSS.MS-PS2-2

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is the Net Force in this picture?

• 40N, left
• 40N, right
• 20N, balanced
• 0N, balanced

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

When two forces are equally strong, the net force will be 0N. We call this _____ force.

• unbalanced

• balanced

• elephant

• newton

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

A lion runs 20km in 15 minutes. What is the average speed of the lion?

• 5km/min

• 2.7km/min

• 1.3km/min

• 0.5km/min

A cross country runner jogged for 2 hours and covered a distance of 14 km. What was the average speed of the runner?

• 28 km/h

• 7 km/h

• 12 km/h

• .14 km/h

What is the average speed of a car that made a 60 mile trip in 20 minutes?

• 3 miles per minute

• 6 miles per minte

• 30 miles per minute

• 60 miles per minute

Tags

NGSS.MS-PS3-1

What is the formula for solving for SPEED

• D/T

• T/D

• S = X

• D x T

Tags

NGSS.MS-PS3-1