Download Integrated Physical Science: Semester 2 Exam Review

Unit Three Exam Review
Accuracy and Measurements:
1. What are the steps in the scientific method? What does a scientist do during each of these steps?
2. What is the difference between an independent variable and a dependant variable?
Chapter #2:
Define and understand the following terms:
force
frame of reference
Net force
Newton
Inertia
1st Law of Motion
speed
Support Force
Vector quantity
velocity
1.
What does the phrase “frame of reference” refer to?
2. What is your frame of reference for the following:
a. Riding in a car:
b. Sitting on your couch watching tv
c.
In a spaceship orbiting the Earth
3. If you are riding in a bus and drop a pen, describe what happens to the pen. What is your frame of
reference?
4. What is the formula for speed? What are the units for distance, time, and speed?
5. On the following graph, what is the x axis, y axis, and what would the slope tell you?
distance
time
6. Draw a motion graph and map for the following:
a.
A person walks away from the origin at a constant speed for 2 seconds, stands still for 1 second,
and then walks at a faster constant speed back toward the origin at a faster constant speed for 2
seconds.
b. A car stopped at a stop light for 3 seconds, starts to travel at a constant speed away from the
origin for 1 second before coming to a stop for 2 seconds.
7. If a person travels to Lansing, 100 miles away, and travels for 2 hours, how fast does he travel?
8. What distance away is Hart Middle School if you walk for 10 minutes at a speed of 200 m/min?
Chapter #3:
Define and understand the following terms:
Acceleration
air drag
Friction
inertia
Kilogram
2nd Law
Terminal speed /terminal velocity
Weight
1.
free fall
inversely
mass
volume
What is terminal velocity and how does it relate to surface area and mass?
2. What is the formula for acceleration? What are the units of speed and time?
3. On the following speed vs. time graph, what are the labels for the x and y axis and what value would the
slope give you?
speed
time
4. If a car comes to a stop in 3 seconds from 60 miles per hour, what is the car’s acceleration?
5. If a car goes from 0-60 mph in 2.5 seconds, what is the car’s acceleration?
6. What is meant by the term inertia?
7. Why does a semi truck have more inertia than a Volkswagen beetle?
8. In order to move an object, what must you do?
9. What is a force? Give an example of a force.
10. Draw a force (free body) diagram for the following:
a. A book sitting on a table
b. An apple falling from a tree
c.
A box sitting on a table being pushed with a force of 10 N against a frictional force of 2 N
11. What is meant by the term equilibrium and what can an object in equilibrium be doing (2 things)?
12. If an object has a net force other than zero, what is happening to the object?
13. Is a car moving around a circular track going at a constant speed? Why or why not?
14. Explain how forces relate to the following situations: acceleration, constant speed, deceleration,
motionless.
15. What is the relationship between force and acceleration (assume that mass remains the same)? Give an
example.
16. What is the relationship between mass and acceleration (assume that force remains the same)? Give an
example.
17. What is Newton’s second law?
18. What are the standard units of mass, force, and acceleration?
19. What is the difference between mass and weight? Explain what the term losing “weight” really means.
20. If a 2 kg mass is pushed with a force of 8 N to the right against a 4N force of friction, what is the
acceleration of the mass (hint: figure out the net force first)?
21. If a car has an acceleration of 30 m/sec/sec and has a mass of 200 kg, what is the force acting on the car?
Chapter #4:
Define and understand the following terms:
Force pair
interaction
1.
3rd Law
What is Newton’s 3rd law?
2. Explain how an interaction works when you push on a wall with a force of 5 N.
3. If the force of a bat against the ball is the action force, what is the reaction and why?
1.
If the ball pushing on the air is the action force, what is the reaction?
2. Which experiences the greater force, a bug or the windshield it hits?? Why?
3. Why does a cannon not travel as far as the cannonball fired from it?
Chapter #7:
Define and understand the following terms:
Law of universal gravitation
inverse square law
gravity
1.
What happens to the force of attraction between two objects if the distance between them is decreased?
2. What happens to the force of attraction between two objects if the mass of one object is decreased?
3. Which has more effect on the tides of the Earth, the sun or the moon? Why?
4. Can you ever escape the attraction you have with the Earth?
5. Explain why there will always be a force of attraction between two objects.
Chapter #8:
Define and understand the following terms:
Ellipse
escape speed
Projectile
satellite
1.
parabola
What is the weight of a 50 kg object on Earth (g = 10 m/sec/sec)?
2. When an object falls, what forces are acting on the object?
3. What is the term terminal velocity mean and how do you reach it?
4. If a baseball is dropped from a height of 10 meters, how far has it fallen after 5 seconds and how fast is
the ball traveling?