MCAS Baseline 2018

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

MCAS Baseline 2018

Try this one too, it will be good for you :)

Email *

Name: *

1. A person pushes a couch across a wooden floor. What force changes when the couch first begins to move? *

1 point

frictional force

gravitational force

normal force

tension force

2. A 4000 kg truck is moving north at 8 m/s, and a 1200 kg car is moving north at 30 m/s. Which of the following statements best compares the truck and the car? *

1 point

The truck has less inertia than the car.

The truck has less momentum than the car.

The truck has more mass but less weight than the car.

The truck has more kinetic energy but less potential energy than the car.

3. A wave with a wavelength of 3.2 m is generated in a pond. The frequency of the wave is 0.60 Hz.What is the speed of this wave? *

1 point

0.19 m/s

1.9 m/s

3.8 m/s

5.3 m/s

4. Sunlight heats a dark rock. A snake then moves onto the rock in order to increase its body temperature.Which of the following sequences represents how heat energy is transferred from the Sun to the rock to the snake? *

1 point

radiation then conduction

radiation then convection

conduction then radiation

convection then radiation

6. A person runs 3 km north. One hour later, she runs 3 km south. Which of the following statements describes the person’s complete trip? *

1 point

The displacement is 3 km.

The distance traveled is 3 km.

The distance traveled is greater than the displacement.

The displacement is greater than the distance traveled.

7. The diagram below shows a representation of two different waves.

Which of the following classifies wave X and wave Y? *

1 point

Both waves are transverse.

Both waves are longitudinal.

Wave X is longitudinal and wave Y is transverse.

Wave X is transverse and wave Y is longitudinal.

8. The picture below shows what a straight pipe looks like in a container of water when viewed from the side.

What is happening in this example as light travels from the water into the air? *

1 point

absorption

diffraction

reflection

refraction

9. Which of the following is a difference between electromagnetic waves and mechanical waves? *

1 point

Electromagnetic waves transmit energy, and mechanical waves transmit information.

Electromagnetic waves are always longitudinal, and mechanical waves are always transverse.

Electromagnetic waves can travel through a vacuum, and mechanical waves require a medium.

Electromagnetic waves have only low frequencies, and mechanical waves have only high frequencies.

10. The diagram below shows a circuit with a light bulb, an ammeter, and a 12 V battery.

The light bulb is lit for 30 s. The ammeter displays a current of 0.60 A.What is the power rating for this circuit? *

1 point

1.5 W

7.2 W

18 W

216 W

11. The diagram below shows a section of a roller coaster track. Five points on the track are labeled.

Between which two points will the roller coaster’s gravitational potential energy be converted into kinetic energy? *

1 point

T and U

U and V

V and W

W and X

12. Thermal energy is added to a sample of 15°C water. Which of the following quantities must increase? *

1 point

the water’s mass

the water’s salinity

the water’s specific heat

the water’s temperature

13. In the circuit shown below, a 12 V battery is connected in parallel to three resistors, labeled X, Y, and Z.

Which of the following statements best describes the current flowing through the resistors in this circuit? *

1 point

Resistor Y has the least current.

Resistor X has the greatest current.

Resistor Z has twice the current of resistor Y.

Each resistor has the same amount of current flowing through it.

14. Grains and spices are irradiated with gamma rays to kill most of the bacteria or fungi that are normally present. Although microwaves are another form of radiation, the properties of these waves do not make them as useful as gamma rays for sterilizing food.In which of the following ways do gamma rays differ from microwaves? *

1 point

Gamma rays have a lower frequency and longer wavelength than microwaves.

Gamma rays have a lower frequency and shorter wavelength than microwaves.

Gamma rays have a higher frequency and longer wavelength than microwaves.

Gamma rays have a higher frequency and shorter wavelength than microwaves.

15. A space station moves in a circular orbit around Earth. Which of the following statements describes the centripetal force acting on the space station? *

1 point

The force is acting in the direction of motion.

The force is directed toward the space station.

The force is directed toward the center of Earth.

The force is acting opposite the direction of motion.

16. Which of the following is an example of an object that could have a net force greater than zero acting on it? *

1 point

a glass resting on a table

a ball rolling down a ramp

a ladder leaning against a wall

a toy car moving east at a constant velocity

17. What is the purpose of the wire coil in an electromagnet? *

1 point

to hold the battery in its center

to decrease the diameter of the wire

to decrease the resistance of the wire

to concentrate the magnetic field in its center

18. A student conducted two investigations using a toy car and microphones, as shown below.

The toy car contained a buzzer. The microphones were used to record the frequency of sound. In investigation 1, the buzzer frequency was measured while the toy car was at rest. In investigation 2, the toy car was in motion and the observed frequency was measured in front of and behind the car.Which of the following graphs represents the frequency recorded by each microphone? *

1 point

19. The graph below represents the motion of a car.

Based on the graph, which of the following statements describes the motion of the car? *

1 point

The car initially travels at a constant speed and then stops.

The car starts from rest and then travels at a constant speed.

The car starts from rest and then accelerates at a constant rate.

The car is initially moving and then accelerates at a constant rate.

Submit

Clear form

Never submit passwords through Google Forms.

This form was created inside of Boston Public Schools. Report Abuse

Forms