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## Chapters 1-4 Review

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**Chapters 1-4 Review**By April Senger FOS**What do we call an educated guess?**• Fact • Law • Theory • Hypothesis**What do we call an educated guess?**• Fact • Law • Theory • Hypothesis**What are the variables called that you try to make sure stay**constant throughout an experiment? • Alphabetic letters • Dependent • Independent • Controlled or constant**What are the variables called that you try to make sure stay**constant throughout an experiment? • Alphabetic letters • Dependent • Independent • Controlled or constant**What is a large collection of information that is well**tested and verified? It is an explanation of an event. • Hypothesis • Fact • Theory • Law**What is a large collection of information that is well**tested and verified? It is an explanation of an event. • Hypothesis • Fact • Theory • Law**When writing up a lab report, your errors should be listed**in or after what part? • Question • Conclusion • Experiment • Hypothesis**When writing up a lab report, your errors should be listed**in or after what part? • Question • Conclusion • Experiment • Hypothesis**What portion of the lab write up is the following an example**of? The string is cotton and cotton stretches. The bar is 40 cm tall. The mass can be changed by 2.73 grams. • Errors • Observations • Conclusion • Question**What portion of the lab write up is the following an example**of? The string is cotton and cotton stretches. The bar is 40 cm tall. The mass can be changed by 2.73 grams. • Errors • Observations • Conclusion • Question**What is an orderly method for gaining, organizing, and**applying new knowledge? • Theory • Scientific method • Law • Fact**What is an orderly method for gaining, organizing, and**applying new knowledge? • Theory • Scientific method • Law • Fact**What is a general hypothesis or statement that has been**tested repeatedly and not contradicted? Sometimes it is called a principle. • Law • Technology • Theory • Fact**What is a general hypothesis or statement that has been**tested repeatedly and not contradicted? Sometimes it is called a principle. • Law • Technology • Theory • Fact**The study of forces and their motion called?**• Chemistry • Astronomy • Biology • Physics**The study of forces and their motion called?**• Chemistry • Astronomy • Biology • Physics**What is a measure of space?**• Mass • Weight • Volume • None of these**What is a measure of space?**• Mass • Weight • Volume • None of these**A sheet of paper can be withdrawn from under a carton of**milk without it falling over. What does this demonstrate? • The paper isn’t touching the milk • The milk has inertia • Gravity holds the milk secure • The milk has no acceleration**A sheet of paper can be withdrawn from under a carton of**milk without it falling over. What does this demonstrate? • The paper isn’t touching the milk • The milk has inertia • Gravity holds the milk secure • The milk has no acceleration**A truck is moving at a constant velocity. Inside the storage**compartment, a rock is dropped from the midpoint of the ceiling and strikes the floor below. Where does the rock it the floor? • Ahead of the dropping point • Behind the dropping point • Exactly below the dropping point • More info is needed to solve**A truck is moving at a constant velocity. Inside the storage**compartment, a rock is dropped from the midpoint of the ceiling and strikes the floor below. Where does the rock it the floor? • Ahead of the dropping point • Behind the dropping point • Exactly below the dropping point • More info is needed to solve**A 10 Newton falling object encounters 4 Newtons of air**resistance. What is the magnitude of the net force on the object? • 10 • 6 • 4 • 0**A 10 Newton falling object encounters 4 Newtons of air**resistance. What is the magnitude of the net force on the object? • 10 • 6 • 4 • 0**A 10 Newton falling object encounters 10 Newtons of air**resistance. What is the next force on the object? • 0 • 4 • 6 • 10**A 10 Newton falling object encounters 10 Newtons of air**resistance. What is the next force on the object? • 0 • 4 • 6 • 10**A man weighing 800 N stands at rest on 2 bathroom scales so**that his weight is distributed evenly over both scales. What is the reading on each scale? • 200 • 400 • 800 • 1600**A man weighing 800 N stands at rest on 2 bathroom scales so**that his weight is distributed evenly over both scales. What is the reading on each scale? • 200 • 400 • 800 • 1600**Galileo’s interpretation of motion differed from**Aristole’s because what did Galileo have that Aristole didn’t? • Hypothesis • Speculation • Classification • Experiments**Galileo’s interpretation of motion differed from**Aristole’s because what did Galileo have that Aristole didn’t? • Hypothesis • Speculation • Classification • Experiments**What are 2 measurements necessary for calculating average**speed? • Distance and acceleration • Distance and time • Velocity and time • Acceleration and time**What are 2 measurements necessary for calculating average**speed? • Distance and acceleration • Distance and time • Velocity and time • Acceleration and time**An object is in free-fall. At one instant, it is traveling**at a speed of 50 m/s. What is its speed exactly 1 second later? • 60 m/s • 50 m/s • 40 m/s • 25 m/s**An object is in free-fall. At one instant, it is traveling**at a speed of 50 m/s. What is its speed exactly 1 second later? • 60 m/s • 50 m/s • 40 m/s • 25 m/s**What is the force that always work in the opposite direction**of motion? • Friction • Velocity • Mass • Gravity**What is the force that always work in the opposite direction**of motion? • Friction • Velocity • Mass • Gravity**What is the gain in speed each second for a freely falling**object approximately? • 0 • 5 m/s • 10 m/s • 20 m/s**What is the gain in speed each second for a freely falling**object approximately? • 0 • 5 m/s • 10 m/s • 20 m/s**A car accelerates from rest at 2 m/s/s. What is the speed 3**seconds after the car starts moving? • 6 m/s • 4 m/s • 3 m/s • 2 m/s**A car accelerates from rest at 2 m/s/s. What is the speed 3**seconds after the car starts moving? • 6 m/s • 4 m/s • 3 m/s • 2 m/s**Which has a greater mass?**• Marshmallow • Automobile battery • King-sized pillow • They are all the same**Which has a greater mass?**• Marshmallow • Automobile battery • King-sized pillow • They are all the same**What is the force due to gravity that acts on an object’s**mass? • Volume • A property of equilibrium • Weight • Mass**What is the force due to gravity that acts on an object’s**mass? • Volume • A property of equilibrium • Weight • Mass**In which case would you have the largest mass of gold? When**your chunk of gold weighed 1 N on the • Jupiter • Moon • Earth • Sun**In which case would you have the largest mass of gold? When**your chunk of gold weighed 1 N on the • Jupiter • Moon • Earth • Sun**Careful: On the surface of Jupiter, where the acceleration**due to gravity is about 3 times that of Earth, what would the MASS be of a 100 kg rock be? • 900 kg • 600 kg • 300 kg • 100 kg**Careful: On the surface of Jupiter, where the acceleration**due to gravity is about 3 times that of Earth, what would the MASS be of a 100 kg rock be? • 900 kg • 600 kg • 300 kg • 100 kg**A car has a mass of 1000 kg and accelerates 2 m/s/s. What is**the magnitude of the force exerted on the car? • 2000 N • 1000 N • 500 N • 1500 N