8th Grade Semester Test Review

Front

What does a graph showing constant speed look like?

Back

A straight line with a constant slope, indicating that distance increases at a steady rate over time.

Front

What is the SI unit for acceleration?

Back

m/s² (meters per second squared)

Front

What does a graph that represents acceleration look like?

Back

A curve or line that shows a change in speed over time, indicating that the object is speeding up or slowing down.

Front

What is gravity?

Back

An attractive force that exists between all objects that have mass.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion; more mass means more inertia.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force increases with the mass of the objects involved.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is a vector?

Back

A quantity that has both magnitude and direction, such as force or velocity.

Front

What is friction?

Back

A force that opposes the motion of an object, acting parallel to the surfaces in contact.