1. A transverse wave is shown here. Several wave properties are labeled with letters. Which of these statements accurately reflects the energy associated with the wave?
A. 1 is wavelength. If wavelength decreases then amplitude (energy) increases.
B. 4 is the amplitude. If the amplitude increases then the energy increases.
C. 4 is the amplitude. If the amplitude decreases then the amplitude increases.
D. X is the frequency. If the frequency increases then the amplitude increases.
2. Cassette tape (analog) recordings often include extra pops and noise. Digital recordings only include the actual recorded sound. Which statement is the best conclusion based on these facts?
A. Digital recordings are required less space than the older method.
B. Digital recordings are more reliable than the older method.
C. Digital recordings are less expensive to produce than the older method.
D. Digital records are can be transmitted faster than the older method.
3. Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may display additional information when you click on them. Drag and drop each item into the correct column. Order does not matter.
Newton's 1st Law, Newton's 2nd Law, Newton's 3rd Law.
Options are When riding the bumper cars at the fair, you bump into your friend and your car bounces back, A ball is rolling straight across the floor until Bradley kicks it, and Your car breaks down. Your friends help you push it, it begins to move and speed up.
4. Match the word to its correct definition. Mass, Weight, Gravity, Acceleration, and air resistance.
Options are the pull of gravity acting on an object, the amount of matter in an object, increase in the rate or speed of an object; includes speeding up slowing down and changing direction, the force that attracts objects with mass toward each other; dependent on the mass of an object and it's distance from another object, and a force that acts against objects moving through the air .
5. The variables _________ and _________ affect the gravitational force between objects.
A. distance, mass
B. rotation, distance
C. volume, weight
D. weight, mass
6. Which best explains why the Moon's surface gravity is only one-sixth of Earth's surface gravity?
A. Gravity is the result of an object's mass and size; the Earth is much larger than the moon.
B. Earth is closer to the sun, so it has much more gravity.
C. The moon orbits Earth faster than Earth orbits the Sun, giving the moon less gravity.
D. Gravity is controlled by the tides, which are much closer to Earth than the moon.
7. Gravity is a(n) ________ force that acts between two or more objects. Gravity exists ________ in the solar system.
A. attractive, in some places.
B. attractive, between solid objects.
C. repulsive, everywhere.
D. attractive, everywhere.
8. If the distance between two objects decrease and the masses of the objects remains the same, then the force of gravity between the two objects.
A. increases then decreases.
B. remains the same.
C. decreases.
D. increases.
9. Gravity is a force between any two objects with mass. Why doesn't a person feel a gravitational force between him/herself and another person?
A. The two gravitational forces cancel eachother out.
B. A person doesn't exert a gravitational force.
C. The gravitational forces of people is so small it is overshadowed by that of Earth.
D. There are so many people we are actually balanced by all the different gravitational forces.
10.Four wrestlers step on a scale for a tournament. Wrestler A weighs in at 170 pounds; wrestler B weighs in at 168 pounds; wrestler C weighs in at 171 pounds; and wrestler D weighs in at 169 pounds. Which of these wrestlers experiences the greatest force due to gravity?
11. Consider the image of our solar system above. Based on your knowledge of gravitational attraction, which planet has the largest gravitational force?
A. Neptune
B. Mercury
C. Earth
D. Jupiter
1. B. 4 is the amplitude. If the amplitude increases then the energy increases.
2. B. Digital recordings are more reliable than the older method.
3.
- Newton's 1st Law: Your car breaks down. Your friends help you push it, it begins to move and speed up.
- Newton's 2nd Law: A ball is rolling straight across the floor until Bradley kicks it.
- Newton's 3rd Law: When riding the bumper cars at the fair, you bump into your friend and your car bounces back.
4.
- Mass: the amount of matter in an object
- Weight: the pull of gravity acting on an object
- Gravity: the force that attracts objects with mass toward each other; dependent on the mass of an object and its distance from another object
- Acceleration: increase in the rate or speed of an object; includes speeding up, slowing down, and changing direction
- Air resistance: a force that acts against objects moving through the air
5. A. distance, mass
6. A. Gravity is the result of an object's mass and size; the Earth is much larger than the moon.
7. D. attractive, everywhere.
8. D. increases.
9. C. The gravitational forces of people is so small it is overshadowed by that of Earth.
10. Wrestler C, who weighs in at 171 pounds.
11. D. Jupiter