Post on 29-Dec-2015
CheckpointCheckpointPhysics Quiz 1 – Physics Quiz 1 – Earth’s ForcesEarth’s Forces
Physics UnitPhysics Unit
Dr. BrowneDr. Browne
1.1. The measure of the amount of heat in an The measure of the amount of heat in an area is ____________. area is ____________.
2.2. The metric scale of temperature is The metric scale of temperature is __________. __________.
3.3. Physical scientists use the ___________ Physical scientists use the ___________ temperature scale because is can measure temperature scale because is can measure extreme temperatures. extreme temperatures.
4.4. The point at which there is no energy in The point at which there is no energy in matter is called __________. matter is called __________.
5. Fill in the missing data: 5. Fill in the missing data:
Freezing PointFreezing Point Boiling PointBoiling Point
CelsiusCelsius 00
FahrenheitFahrenheit 212212
KelvinKelvin 273273
6. The instrument used to measure temperature 6. The instrument used to measure temperature is the _____________________. is the _____________________.
7. The mass per unit volume is an objects’ 7. The mass per unit volume is an objects’ ___________. ___________.
8. The upward force of a fluid acting on an object 8. The upward force of a fluid acting on an object is __________. is __________.
9. The buoyant force on an object is equal to the 9. The buoyant force on an object is equal to the weight of the fluid displaced by the object is weight of the fluid displaced by the object is known as _________________ __________________. known as _________________ __________________.
10. What is the density of water? _____________10. What is the density of water? _____________
11. Objects more dense than the fluid they are in 11. Objects more dense than the fluid they are in will _____________; objects less dense than the will _____________; objects less dense than the fluid they are will _______________. fluid they are will _______________.
12. Physics is the study of __________ 12. Physics is the study of __________ and________ and their relation to the and________ and their relation to the ______________________. ______________________.
Check PointCheck Point
13. What is a force? A __________________________
14. To describe a force both the _______________ and the ________________ are needed.
15. Unbalanced forces occur when . . .
16. Balanced forces are ______________ in size and ________________ in direction.
17. _______________ forces do not cause a change in an objects motion.
18. The _________________ of an object is the amount of gravity pulling on it.
19. Look at the diagram below and answer the question that follow:
a. What is the net force acting on the box? ________
b. What is the effect of the forces on the box?
10 N
3 N
9 N
20. The Gravity is the force of ___________________ between objects in the universe.
21. What is Universal gravitation? Who came up with it?
22. If the mass of an object increases, gravity will _______________. An object with less mass will have _______________ gravity than an object with greater mass.
23. As the distance between objects increases, the gravity will _____________________.
24. Air resistance is increased by an increase in _____________.
Answer KeyAnswer Key
How did you do?How did you do?
Answer KeyAnswer Key
1.1. The measure of the amount of heat in an The measure of the amount of heat in an area is area is temperaturetemperature. .
2.2. The metric scale of temperature is The metric scale of temperature is CelsiusCelsius. .
3.3. Physical scientists use the Physical scientists use the KelvinKelvin temperature scale because is can measure temperature scale because is can measure extreme temperatures. extreme temperatures.
4.4. The point at which there is no energy in The point at which there is no energy in matter is called matter is called absolute zeroabsolute zero. .
5. Fill in the missing data: 5. Fill in the missing data:
Freezing PointFreezing Point Boiling PointBoiling Point
CelsiusCelsius 00 100100
FahrenheitFahrenheit 3232 212212
KelvinKelvin 273273 373373
6. The instrument used to measure temperature 6. The instrument used to measure temperature is the is the thermometerthermometer. .
7. The mass per unit volume is an objects’ 7. The mass per unit volume is an objects’ densitydensity. .
8. The upward force of a fluid acting on an object is 8. The upward force of a fluid acting on an object is buoyant forcebuoyant force. .
9. The buoyant force on an object is equal to the 9. The buoyant force on an object is equal to the weight of the fluid displaced by the object is known weight of the fluid displaced by the object is known as as Archimedes’ principleArchimedes’ principle. .
10. What is the density of water? 10. What is the density of water? 1 g/mL1 g/mL
11. Objects more dense than the fluid they are in 11. Objects more dense than the fluid they are in will will sink (negative buoyancy)sink (negative buoyancy); objects less dense ; objects less dense than the fluid they are will than the fluid they are will float (positively float (positively buoyant)buoyant). .
12. Physics is the study of 12. Physics is the study of mattermatter and and energy energy and there relation to the and there relation to the universeuniverse. .
Check PointCheck Point
13. What is a force? A push or pull
14. To describe a force both the size (magnitude) and the direction are needed.
15. Unbalanced forces occur when . . . Forces are unequal in size.
16. Balanced forces are equal in size and opposite in direction.
17. Balanced forces do not cause a change in an objects motion.
18. The weight of an object is the amount of gravity pulling on it.
19. Look at the diagram below and answer the question that follow:
a. What is the net force acting on the box? 2 N
b. What is the effect of the forces on the box? Moves to the left with a force of 2 N
10 N
3 N
9 N
20. The Gravity is the force of attraction between objects in the universe.
21. What is Universal gravitation? Who came up with it? States that all objects in the universe are States that all objects in the universe are attracted to each other. Sir Isaac Newtonattracted to each other. Sir Isaac Newton
22. If the mass of an object increases, gravity will increase. An object with less mass will have less gravity than an object with greater mass.
23. As the distance between objects increases, the gravity will decrease.
24. Air resistance is increase by an increase in surface area.