Newton's law

• Science
• Secondary Education

Newton's first law 

Grade-9

Oct 7, 2020

INSTRUCTIONS 

mute your mics do not on unless instructed

turn on the camera 

Join the session with the link and password 

Maintain the online session decorum

INERTIA 

The tendency of an object to resist change in motion is called the inertia.

Netwon's first law of motion

It states that if the net force acting on an object is zero, the motion of the object does not change.

An object remains at rest or at constant motion unless an external unbalanced force acts on it

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Challenge 

How does the unbalanced force changes the motion of an object?

CHALLENGE

Why should we always wear a seat belt?

Newton’s first law of motion states than an object’s motion will not change unless

1. the net force acting on it is greater than zero
2. a force continues to be applied to the object.
3. its inertia is stronger than the applied force.
4. the object has no inertia.

It is more difficult to start a 50-kg box sliding across the floor than a 5-kg box because the 50-kg box has greater

1. size
2. volume
3. velocity
4. inertia

An object’s velocity will not change unless it is acted on by a(n)

1. net force
2. strong force
3. balanced force
4. unbalanced force

Friction 

Inertia

net force

Tetendency of an object to resist a change in motion

force that opposes the motion of any object

. combination of all the forces acting on an object

What are 2 things you understood and one things you want to know?