1. Pg 696 1. Read figure 11, where is there more speed. 2
Pg Read figure 11, where is there more speed? 2. Draw the billiard ball in your journal. Then draw a bowling ball next to it as if it was dropped at the same height with the billiard ball. 3. Any two objects dropped at the same height will not depend on weight but on the ___ pull of those objects.
Optional textbook for the 3 to 4 slides

2. Pg 696 1. Read figure 11, where is there more speed. 2
Pg Read figure 11, where is there more speed? 2. Draw the billiard ball in your journal. Then draw a bowling ball next to it as if it was dropped at the same height with the billiard ball.
Pg Read figure 11, where is there more speed? 2. Draw the billiard ball in your journal. Then draw a bowling ball next to it as if it was dropped at the same height with the billiard ball.
gravitational

4. 3. Any two objects dropped at the same height will not depend on weight but on the ___ pull of those objects.
gravitational

5. Pg 696 1. Read figure 11, where is there more speed. 2
Pg Read figure 11, where is there more speed? 2. Draw the billiard ball in your journal. Then draw a bowling ball next to it as if it was dropped at the same height with the billiard ball. 3. Any two objects dropped at the same height will not depend on weight but on the ___ pull of those objects.
gravitational

6. Do Now- Mass versus Weight 1
Do Now- Mass versus Weight 1. Gravity is a pull on an object due to its ___ Mass is the amount of ___ in an object. 3. Therefore mass ___ changes. 4. Weight is the measure of the ___ pull on the object. 5. Therefore if gravity increases, weight also ___ .
mass
matter
never
gravitational
increases
Highlight bold print words for vocab

7. Copy in your journal. Class Notes 1
Copy in your journal. Class Notes 1. Formula is Weight (N) = mass (kg) X gravity (9.81 m/s2) 2. The unit for weight is ___ 3. Given the gravitational force on Earth = m/s2 4. Acceleration is an ___ in rate or speed of something. 5. If an object has a mass of 10kg. What is its weight? Give correct units.
kg * m/s2
increase
Follow by activity…how does gravity affect weight, dry lab
10 kg X 9.81 m/s2 =
98.1 N

9. Do Now increase shorter
An increase an gravitational force depends on two factors:
An ___ in mass
The ___ the distance between two objects.
increase
shorter
From 2 pg packet reading

10. 2. If these letters represent stars, which pair of stars have the most gravitational attraction to one another: Bigger case letters have more mass than lower case letters. A….a A….A a….a
Circle this pair

11. Do Now- 1a. Find the reading on the triple beam balance: see picture b
Do Now- 1a. Find the reading on the triple beam balance: see picture b. see picture 2. If your agenda pad has a mass of 35 grams, what is its weight? 3. If you take your agenda pad on the moon, what is its weight and mass?
Day 2- wet lab

12. Do Now- 1a. Find the reading on the triple beam balance:
30+
5 = 35
grams

13. b. Find the reading of the triple beam balance:
60+
100+ 1+
0.4 =
161.4
grams

14. 2. If your agenda pad has a mass of 35 grams, what is its weight. 3
2. If your agenda pad has a mass of 35 grams, what is its weight? If you take your agenda pad on the moon, what is its weight and mass?
weight = mass X gravity
35g = kg
1000g
= .035 kg X 9.81 m/s2
35g X 1kg
1000g
= 0.34 N

15. 3. If you take your agenda pad on the moon, what is its weight and mass?
Weight is less than 0.34 N because there is less gravity on the moon.
Mass stays the same; 35 grams

16. Plotting a Line Graph 1. Label your X axis as the gravitational acceleration. Do not plot for the Sun. 2. Label your Y axis as the weight of journal. 3. Plot your graph and give it a title. 4. What can you infer about the mass of the objects and gravity? 5. How does weight depend on gravity?
Hon- let them count the intervals themselves. Gen: do together, have students figure out which is best fit.

17. 3. Find the reading for the ruler:1+
0.5 =
1.5 inches
Follow by next lab

18. 5. ___ is the measurement for the amount of space that an object or substance occupies.
Volume
Volume of a solid
Formula is length X width X height
Volume of a liquid

19. 1. Volume is the measurement for the amount of space that an object or substance ___ We measure the volume of a solid by using a ___ Find these two measurements. See next slide.
occupies
metric ruler
hint: how do you find density? Or you can say matter?
length X width X height

20. 3. Find these two measurements.
1.5 cm
Ask what’s wrong with this picture?

21. 3. Find these two measurements.
3.8 cm

22. Needed for lab, “Does gravity affect weight and mass?”

23. Table #1 Unit Equipment used mass weight kilogram Balance Newton
Spring scale
Table #2
Earth
0.17 m/s2 gravity on moon
25.6 m/s2 gravity on Jupiter
Mass of mug
1 kg
Weight of mug
9.8 N
Show spring scale demo
1 kg
1 kg
0.17 N
25.6 N

24. Reflections date Do you think we needed two labs to understand the difference between mass and weight? Why or why not?

25. Do Now- In summary: 1. Write the formula for weight and include units
Do Now- In summary: 1. Write the formula for weight and include units. 2. This means as gravity increases, weight also ___. 3. ___ never changes because it does not depend on gravity. 4. However there is a greater gravitational force with ___ masses. 5. There is also ___ gravitational attraction between objects that are closer together.

26. 1. Write the formula for weight and include units.
WEIGHT = MASS x GRAVITY
N = kg X m/s2

27. 2. This means when gravity increases, weight also ___. 3
2. This means when gravity increases, weight also ___ ___ never changes because it does not depend on gravity.
increases
mass

28. 4. However there is a greater gravitational force with ___ masses. 5
4. However there is a greater gravitational force with ___ masses. 5. There is also ___ gravitational attraction between objects that are closer together.
larger
more

29. Massive Confusion wkt mass Triple beam balance weight Kg or g
Word bank for true or false, this do now circle which three relates to each other.
Spring scale N

30. 1. “Oh no, this can’t be right
1. “Oh no, this can’t be right. How my weight can change from 95 kilograms to 90 kilograms.”, Fred shouted. 2. If I go far enough away from the Earth’s surface, I will get to a place where my mass will be almost zero An object of 200 kg on the surface of the Earth should still measure 200 kg in the orbiting station space station. N N
weight
true

31. 4. In the space station, I would use a triple beam balance to find the weight of an object Bridgett placed a tennis ball on the triple beam balance of 250 grams. Naturally, she could expect the same result on the moon Food is sold in the supermarket by weight- for example, $2.50 for a kilogram of sugar.
mass
true N

32. 4. In the space station, I would use a triple beam balance to find the weight of an object Bridgett placed a tennis ball on the triple beam balance of 250 g. Naturally, she could expect the same result on the moon Food is sold in the supermarket by weight- for example, $2.50 for a kilogram of sugar.
mass
true N

33. 7. On the surface of the moon, the weight of a 100 g mass is between 0
7. On the surface of the moon, the weight of a 100 g mass is between 0.1 N and 0. 2 N Due to the gravitational pull of different terrains, my weight in New Jersey is 100 kg while in Los Angeles it was 101 kg Galileo was right. Two different masses of rocks, dropped from the same height can land on the ground at the same time.
true N
weights

34. 10. The amount of gravitational pull of the Earth towards the Sun depends on the weight of the planet In lab, springs and rubber bands were used to find the mass of the metal sinkers In lab, the unit used to measure weight of objects is Newton.
true
weight
true

35. 13. A triple beam balance is used to find the weight of objects. 14
13. A triple beam balance is used to find the weight of objects It doesn’t matter which planet you go to because the mass of an object will never change My weight on the moon is less than on Earth since there is less gravity on the moon.
mass
true
true

36. Do Now 1. All object on Earth have weight as they experience a force of gravity that is directed downwards towards the center of the Earth. 2. If the unit for weight is

37. Do now- 1. You are familiar with the use of newton (N)
Do now- 1. You are familiar with the use of newton (N). But what does a newton feel like? Now lift these: a) How much weight is a 250 gram stapler? b) 2.5 kg brick? c) 7 kg chair?
2.5 N
25 N
70 N

38. Force = 500. (P- 50) where P = pressing point of
Force = (P- 50) where P = pressing point of you finger and unit for Force is Newton ex: if you press your finger at 100 cm on the metric ruler then the equation is: Force = (100-50) Force =
Intro to lab
10 N

39. Lab- 1. Part A, place a 1 kg block on the 45 cm and press your finger on the 100 cm mark.

40. Lab Part d- place your finger at the 60 cm mark

41. Lab
Part f
Use the
formula
given