Unit 1 Force and Motion MCAS Review

A student pushes a 12 N book to the right with a force of 10 N. The book experiences a frictional force of 3 N. The free-body force diagram below represents the forces acting on the book.

What is the magnitude of the net force acting on the book?

• 7 N

• 11 N

• 13 N

• 37 N

Tags

NGSS.HS-PS2-1

Three rocks with masses of 1 kg, 5 kg, and 10 kg fall from the same height. Which of the following describes the inertia of these rocks?

• None of the rocks have inertia.

• All the rocks have the same inertia.

• The 1 kg rock has more inertia than the other two rocks.

• The 10 kg rock has more inertia than the other two rocks.

A student ties a string to a box. The student pulls on the string to accelerate the box upward.

Which of the following force diagrams illustrates the forces acting on the box?

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Tags

NGSS.HS-PS2-1

A car moves at a constant velocity for 4 s. A student records data on the car’s motion, as shown in the table below, but the student forgets to label the second column of the table.

Which of the following is the missing label?

• Acceleration (m/s2)

• Distance (m)

• Force (N)

• Speed (m/s)

A student swings a ball on a string in a circular motion and then cuts the string. Which of the following diagrams shows the direction the ball will initially move when the string is cut?

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Tags

NGSS.HS-PS2-1

The diagram below shows an 80 kg ice skater applying a force of 10 N to a 60 kg ice skater.

Which statement best describes the results of applying the 10 N force?

• The skaters will not move at all.

• The skaters will accelerate away from each other at the same rate.

• The skaters will accelerate away from each other, but the 60 kg skater will accelerate at a faster rate.

• The 60 kg skater will accelerate away from the 80 kg skater, and the 80 kg skater will remain stationary.

Tags

NGSS.HS-PS2-1

An object is moving west at 30 km/h and another object is moving north at 30 km/h.

Which of the following statements describes the motion of both objects?

• They have the same velocity and the same speed.

• They have the same velocity but different speeds.

• They have different velocities but the same speed.

• They have different velocities and different speeds.

A student wants to determine the gravitational attraction between two objects. Which two quantities does the student need to know?

• the mass and the charge of each object

• the volume and the charge of each object

• the mass of each object and the distance between the two objects

• the volume of each object and the distance between the two objects

Tags

NGSS.HS-PS2-4

The velocity of a bus is represented in the graph below.

Which of the following best describes how the bus moves over time?

• The bus stays in one place for 20 s and then travels at a constant speed.

• The bus travels at a constant speed for 20 s and then accelerates at a constant rate.

• The bus accelerates at a constant rate for 20 s and then travels at a constant speed.

• The bus accelerates at a constant rate for 20 s and then accelerates at an increasing rate.

The graph below represents the vertical displacement of an elevator during a 16 s period.

Which of the following can be concluded from the data in the graph?

• Between 2 s and 6 s, the acceleration of the elevator is greatest.

• Between 4 s and 12 s, the velocity of the elevator is constant.

• Between 8 s and 14 s, the acceleration of the elevator is constant.

• Between 14 s and 16 s, the velocity of the elevator is greatest.

Tags

NGSS.HS-PS2-1