Newton's Laws and Speed Calculations

Two people are pushing a box in opposite directions. One person is pushing the box with a force of 10N to the right and the other person is pushing the box with a force of 50N to the left. What is the net force?

• Opposite directions means you should subtract.

  50N-10N= 40N

• Opposite directions means you should add.

  50N+10N= 60N

• Opposite directions means you multiply.

  50Nx10N=500N

• Opposite directions means you divide.

  50N/10N=5N

Tags

CCSS.HSN.VM.A.3

A balanced force is when an object is _____________

• In motion

• Still or a constant speed

• Accelerating

• Deaccelerating

What is the net force acting on the car? Don't forget the units.

Tags

CCSS.HSN.VM.A.3

How do you calculate speed?

• Speed/time

• Time/Distance

• Time/Speed

• Distance/time

Tags

CCSS.HSG.MG.A.2

A student rides her bike to school each day and travels 80 meters to get home. It takes her 8 minutes to go from school to her house. What is her speed?

• 40 m/s

• 80 m/s

• 20 m/s

• 10 m/s

What would this diagram need in order to be considered a velocity?

Tags

NGSS.MS-PS3-1

Force= Mass x Acceleration is which of the three Newton's Laws

• Newtons First Law

• Newtons Second Law

• Newtons Third Law

Tags

NGSS.HS-PS2-1

A car travels at an acceleration of 5 m/s/s and weighs 10kgs. What force is being applied on this car.

• 2N

• 5N

• 10N

• 50N

Tags

NGSS.MS-PS2-2

When a car suddenly stops, the objects in the back seat are thrown forward. This is explained by-

• inertia

• Momentum

• Force

• Acceleration

Tags

NGSS.MS-PS2-2

• This is an example of Newton's First Law.
• This is an example of Newton's Second Law.
• This is an example of Newton's Third Law.

Tags

NGSS.MS-PS2-1