Newton's Second Law

Draw

Draw an example of Newtons 1st Law

or write something you remember from newtons 1st law

Newtons Second Law

SWBAT Calculate force, by the given mass and acceleration of objects by the end of the period.

-​Measure in NEWTONS (N)
- Ex: The car's engine has a 50N force.

FORCE

​How much something weighs
Units can be in
Kilograms (Kg)
Grams (g)
pounds (Lb)

MASS

​Acceleration is a change in speed.

Units in m/s²

Acceleration

Why is the second Law important?

The Second Law integrates force, mass and acceleration.

Think about it. which will require more force, a cart with a mass of 30kg or a cart with a mass of 100kg?

If I have two carts with a mass of 40kg. Which one will accelerate more, the one where I apply 100N or the one where I apply 400N?

Direct relationship between force and Acceleration

Multiple Choice

Which of these requires more Force to move?

• The car

• The truck

Multiple Choice

Which of these will accelerate more if the same force is applied to all of them

• Soccer ball

• Bowling ball

• Baseball

Newtons Second law is Force= Mass x Acceleration

Example:
? N
40 g
100 m/s²

​Calculating Force

​A car has a mass of 400pounds, and it accelerated 240m/s² what is the force of the car?

​Finding Force

​A boxer punches with a 70N. The acceleration of the punch is 20m/s^s what is the mass of the punch?

Finding Mass

​Mr. Davila's car is racing. The car has a mass of 230 pounds. The force of the engine is 600N. What is the acceleration of the Car?

Finding Acceleration

Fill in the Blanks

Multiple Choice

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

Multiple Choice

A 20 kg bike accelerates at 10 m/s2. What was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Match

Looking at the data table in the picture, match the following vehicle with it's correct force

• Motorcycle

• Car

• Truck

• SUV

16,150 N

25,620 N

23, 520 N

23,750 N

• 16,150 N

• 25,620 N

• 23, 520 N

• 23,750 N

Work on this by yourselves.

8min
https://quizizz.com/join?gc=86123267
Voice Level 0

Independent Practice

Exit ticket