Mass and Weight
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Easy
+5
Standards-aligned
Jessie Russell
Used 52+ times
FREE Resource
9 Slides • 11 Questions
1
Mass and Weight
Year 7 Physics
2
Match
Match the terms to their definition.
Mass
Weight
Gravity
Newtons
Amount of matter in an object
Force exerted by gravity on an object
Attraction force between two masses
Units forces are measured in
Amount of matter in an object
Force exerted by gravity on an object
Attraction force between two masses
Units forces are measured in
3
Multiple Choice
Mass is measured in...
Newtons
pounds
grams
kilograms
4
Multiple Choice
Weight is measured in...
kilograms
grams
Newtons
forces
5
Weight is calculated by the mass of an object, multiplied by the gravity being experienced.
6
Reorder
Rank the following from strongest to weakest gravitational field.
Bus
Dresser
Stool
Remote
Tweezers
7
On Earth, gravity is 9.8 N/kg. An object with a mass of 20 kg would have a weight of 196 N.
weight = mass x gravity
196 = 20 x 9.8
8
Multiple Choice
What calculation would you put in your calculator to find the weight of a 85 kg object on Earth?
85 x 9.8
85 + 9.8
85 / 9.8
9.8 / 85
9
Fill in the Blanks
10
Fill in the Blanks
11
Fill in the Blanks
12
Convert mass to kilograms before calculating!
13
Match
Match the following masses to their mass in kilograms:
689 g
4780 g
2.5 tonnes
0.86 tonnes
0.689 kg
4.780 kg
2500 kg
860 kg
0.689 kg
4.780 kg
2500 kg
860 kg
14
Multiple Choice
What is the weight of a 476 mg object on Venus, with a gravity of 8.8 N/kg?
350 N
4188 N
15
The formula can be rearranged to calculate mass, and also gravity.
16
On Earth, gravity is 9.8 N/kg. What is the mass of an object with a weight of 250N?
weight = mass x gravity
250 = ? x 9.8
? = 250 / 9.8
? = 25.5 kg
17
Match
Calculate the weight for each object on Earth (gravity = 9.8 N/kg)
75N object
33N object
50N object
100N object
20N object
7.65 kg
3.36 kg
5.10 kg
10.20 kg
2.04 kg
7.65 kg
3.36 kg
5.10 kg
10.20 kg
2.04 kg
18
Copy and complete the table in your notebook.
Check your answers on the next slide!
19
20
Check your learning, can you...
explain the difference between mass and weight?
state the units mass and weight are measured in?
calculate the weight if given mass and gravity?
calculate the mass if given weight and gravity?
Mass and Weight
Year 7 Physics
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