Newton's second law

• Science
• Secondary Education

SCIENCE 

GRADE-9

OCT 11, 2020

Ms.Famin

INSTRUCTIONS 

• Mute your mic do not on unless instructed 
• Turn on your camera
• Follow the decorum of online class
• Raise your hand while talking/talk at a time  
• please react when called upon 

INTERPRET 

OBJECTIVES 

Identify the causes of forces changing motion

state Newton's second law of motion

Solve for Newton's second law of motion 

INTERPRET 

VISUAL CHECK- How would the net force and velocity and velocity arrows change if the girl pushed harder?

how is the object's velocity changed here?

Relate force and mass

Relate force and mass

Newton's second law of motion 

Sates that the acceleration of an object is equal to the net force acting on the object divided by the object's mass.

What happens when unbalanced forces act on an object at rest?

1. the object remains at rest
2. the object begins moving in an unpredictable direction
3. the object begins moving in the direction of the net force
4. the object begins moving opposite to the direction of net force

What happens when unbalanced forces act on an object in motion?

1. the object accelerates in an unpredictable direction
2. The object accelerates in the direction of the net force
3. the object accelerates opposite to the direction of net force
4. the object always stops moving

This equation goes with which law?

1. Newton's first law
2. Newton's second law
3. Newton's third law
4. none of these

You throw a 0.5 kg basket ball with a force of 10 N. What is the acceleration of the ball?

1. 2 m/s^2
2. 10 m/s^2
3. 5 m/s^2
4. 20 m/s^2

F = ma, here F represents 

F = ma, here m represents 

F= ma , here a represents 

force with unit Newton

m is mass with unit kg

a is acceleration unit m/s2