Forces Review

What causes changes in the speed and/or the direction of an object's motion?

• Light energy

• Equilibrium

• Balanced forces

• Unbalanced forces

Tags

NGSS.MS-PS2-2

According to the diagram below in what direction will the motion of the book go?

• To the left

• To the right

• The book's motion won't change

• Upwards

Tags

NGSS.MS-PS2-2

Which of the following shoes balanced forces acting on the car?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

An object at rest experiences a 10N force to the right and a 30N force to the left. What is the net force, and how will the force affect the object?

• 20 N, the object will move to the left

• 40 N, the object will move to the right

• 20N, the object will move to the right

• 40N, the object will move to the left

Tags

NGSS.MS-PS2-2

In the picture below, a boy is trying to pull a dog on a leash, but the dog and the boy are moving in the same direction. Which of the following best describes the forces in this situation?

• The forces are balanced, and the net force is zero.

• The forces are unbalanced, and the boy's force is greater.

• The forces are unbalanced, and the dog's force is greater.

• The forces are balanced, and the dog is stronger than the boy.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

A ruler is on the table with the higher numbers to the right. An ant crawls along the ruler from 5 cm to 2 cm in 1 seconds. Which of the following represents a possible velocity?

• 3 cm/s to the left

• 3 cm/s²

• 7 cm/s²

• 7 cm/s to the right.

A car is moving 200 km/h to the southeast. "200 km/hr to the southeast" is the car's....

• Acceleration

• Velocity

• Average speed

• Motion

According to the graph, how do you solve for the speed of the object?

• Speed= distance/time

• Speed= 50/10

• Speed = 20/4

• S= d/t

Tags

NGSS.MS-PS3-1

Using the information from the graph below, which statement best describes the motion of the object?

• The object turns a corner.

• The object is slowing down during the trip.

• The object travels at a constant speed during the entire trip.

• The object travels at a faster speed during the last part of the trip.

Tags

NGSS.MS-PS3-1

The graph below relates speed and time of four cars (1, 2, 3 and 4) traveling along a straight highway. Which two cars move with zero acceleration?

• 1 and 4

• 2 and 4

• 1 and 2

• 2 and 3

Tags

NGSS.MS-PS3-1