Nebraska NSCAS Science Grade 8 Practice Questions - Nebraska Student-Centered Assessment System Science - Grade 8 Exam

Access More Questions

A student pushes a heavy cart across a level floor at a steady speed. While the cart moves, the student applies a constant forward force, and friction exerts an opposing force on the cart. How do these two forces compare while the cart moves at a steady speed?

The forward force and the friction force are equal in size and opposite in direction. The forward force is larger than the friction force, causing the cart to speed up. The friction force is larger than the forward force, causing the cart to slow down. The two forces cancel out because they act on different objects.

Correct Answer:

The forward force and the friction force are equal in size and opposite in direction.

Access more questions from this quiz

Continue to Nebraska NSCAS Science Grade 8 Practice Questions - Nebraska Student-Centered Assessment System Science - Grade 8 Exam for more practice questions and the full quiz experience.

Access More Questions