Worksheets2024 MCAS Session 1
Total questions: 17
Worksheet time: 14mins
The diagram shows two charged particles separated by a distance, d.
Which of the following describes how the forces between the two charged particles change as the distance between the particles changes?
As the particles move farther apart, the attractive forces increase.
As the particles move farther apart, the repulsive forces decrease.
As the particles move closer together, the attractive forces increase.
As the particles move closer together, the repulsive forces increase.
A student heated water in a container.
Match the model of molecular motion of the water to the amount of heat added.
A sound has a frequency of 110 Hz both in air and water. The velocity of sound is 340 m/s in air and 1500 m/s in water.
How does the wavelength of the sound in water compare to its wavelength in air?
The wavelength in water is about 0.07 times shorter.
The wavelength in water is about 0.32 times shorter.
The wavelength in water is about 3.09 times longer.
The wavelength in water is about 4.40 times longer.
A 6.0 V battery, a 2.0 Ω resistor, and a 4.0 Ω light bulb are connected in series. How much current will flow through the circuit?
1.0 A
1.5 A
3.0 A
4.5 A
Rank the following objects from least to greatest momentum.
(4 has the least momentum and 1 has the most momentum)
a 50 kg athlete running at 8 m/s
a 100 kg crate being lifted at 1 m/s
a 0.05 kg ball moving at 50 m/s
a 1600 kg car at rest
Carbon-14 is produced in Earth's atmosphere. The nucleus of carbon-14 is not stable and changes to nitrogen-14 to become more stable, as shown.
Carbon-14 changes to nitrogen-14 through (a) .
In this type of decay, a (b) changes into a (c) and an electron.
A magnifying glass was used to create an enlarged image of a candle. The diagram shows the candle and the image of the candle that an observer saw. The solid lines represent the actual path of light.
Which of the following explains why the light traveled from the candle to the observer in the path shown?
The light refracted as it entered and exited the magnifying glass.
The light diffracted as it entered and exited the magnifying glass.
The light reflected off the surface of the magnifying glass instead of passing through the magnifying glass.
The light traveled as a particle through the magnifying glass instead of traveling as a wave through the magnifying glass.
A magnifying glass was used to create an enlarged image of a candle. The diagram shows the candle and the image of the candle that an observer saw. The solid lines represent the actual path of light.
The path of the light from the candle appeared to bend as it traveled to the observer.
As the light from the candle entered the magnifying glass, the light (a) .
Because the frequency of the light did not change, the wavelength of the light (b) .
Which of the following is an example of light behaving like a particle?
When violet light shines on a metal plate, electrons are ejected from the metal plate.
When light passes through slits and interferes, it forms a pattern of bright and dark regions on a wall.
When a light source is directed onto a soap bubble, reflections from the surface of the bubble produce colors.
When a laser beam shines on a round object, a circle with a bright spot in the center appears on a screen behind the object.
A 10 kg object accelerates at 5 m/s2 over a distance of 4 m. What is the net force on the object?
0 N
20 N
40 N
50 N
In an investigation, students wrapped an insulated copper wire around an iron nail so that the nail had 20 loops around it. They connected the ends of the wire to a 1.5 V battery. The setup is shown.
A student held the nail with the wire above several metal paper clips. Some of the paper clips accelerated upward toward the nail.
The upward force that acted on the paper clips was from (a) .
The field was generated by the (b) .
In an investigation, students wrapped an insulated copper wire around an iron nail so that the nail had 20 loops around it. They connected the ends of the wire to a 1.5 V battery. The setup is shown.
A student held the nail with the wire above several metal paper clips. Some of the paper clips accelerated upward toward the nail.
The students next investigated the number of paper clips that could be picked up when there were different numbers of loops of wire around the nail. The students made the table shown to record their data.
Which of the following questions were the students most likely trying to answer in their investigation?
How does the number of paper clips picked up affect the electric field around the batter?
How does the number of paper clips picked up affect the gravitational field on the batter?
How does the number of loops of wire affect the strength of the magnetic field around the wire?
How does the number of loops of wire affect the electric field that moves through the paper clips?
The diagram shows an experimental setup to measure heat transfer between two sealed bags of cooking oil. The bags are in an insulated container. Bag X contains 200 mL of cooking oil at 25°C. Bag Y contains 200 mL of cooking oil at 75°C. The temperature of the oil in each bag is recorded over 25 minutes.
Which graph shows the temperature of the oil in each bag over the 20-minute period?
The current in the circuit is 0.02 A. Which table shows the correct values for the voltage drop across each resistor and the total voltage drop across the circuit?
In a vacuum, radio waves have a lower frequency than infrared radiation. Which of the following best compares radio waves and infrared radiation in a vacuum?
In a vacuum, radio waves and infrared radiation have the same speed. Therefore, radio waves have a longer wavelength than infrared radiation.
In a vacuum, radio waves and infrared radiation have the same speed. Therefore, radio waves have a shorter wavelength than infrared radiation.
In a vacuum, radio waves and infrared radiation have the same wavelength. Therefore, radio waves have a faster speed than infrared radiation.
In a vacuum, radio waves and infrared radiation have the same wavelength. Therefore, radio waves have a slower speed than infrared radiation.
Which of the following graphs must represent constant, positive acceleration?
A student is investigating electrostatic forces using two pith balls. Pith balls have a very small mass and can be easily charged. The student charges each pith ball, which results in the balls being separated by a distance, d, as shown in the diagram.
The pith balls have (a) .
If the student increases the magnitude of the charge on each pith ball, the distance between the pith balls will (b) .
