Unit 4 Physics II Day 12: Newton’s Second Law (Force and Acceleration)

Physics I Day 12: Newton’s Second Law (Force and Acceleration)

Newton’s Second Law has two parts…

The first part you already know: Acceleration is caused when a force___________ acts on an object_______________.

Objects are matter, so they all have mass___________-

 The second part is that objects with greater mass___________ require more force___________ to accelerate.

10 kg

			5 kg
	1 kg

 

P.S…. this explains why Mr. Miller would fall off a roof at the same rate as Miguel!

Designing Experiment Review:

1) Find the variables

2) Design a procedure remembering that it should:

·      Use action  verbs

·      Tell what the scientist is doing  to the independent variable

·      Describe specifically how to measure the dependent variable

·      Describe how to set up the experiment

Let’s Try as a Class

Question: Which battery will roll further: a 10 g battery or a 100 g battery?

IV: Mass of battery                            DV: Length it rolls

CVs: ramp, surface, battery brand

Materials:

Battery, meter stick, clipboard

Procedure:

·      Place the 10 g battery on the top of a clipbaord

·      Roll the battery down the clipboard and mark where it stops

·      Measure the length of the roll with a meter stick in centimeters

·      Repeat with the 100 g battery

Data: (Draw a table)

Newton’s Second Law Experiment

Newton’s second law says that objects with greater mass require more force to accelerate. Let’s confirm that law by designing an experiment.

Question: Does changing the mass of an object affect the amount of force required to accelerate it?

IV: _____________________________________________________________________________________________

DV: ____________________________________________________________________________________________

CVs: ___________________________________________________________________________________________

Materials:

Procedure:

·      __________________________________________________________________________________

·      __________________________________________________________________________________

·      __________________________________________________________________________________

·      __________________________________________________________________________________

Data: (Draw a table)