Unit 8.1 Contact Forces

Front

How does the contact force between two objects compare during a collision?

Back

The contact force is equal and opposite on both objects according to Newton's third law.

Front

What are the factors of gravitational potential energy?

Back

Mass, height, and gravitational acceleration.

Front

What is an independent variable?

Back

A variable that is changed in a scientific experiment.

Front

What is a dependent variable?

Back

A variable that is measured and affected in an experiment.

Front

What is a control variable and why do we use them?

Back

A control variable is kept constant to ensure that the experiment tests only the independent variable.

Front

What is the formula for force?

Back

Force = mass × acceleration (F = ma).

Front

What causes change of shape in a collision?

Back

The application of force during the collision.

Front

What causes change of motion in a collision?

Back

The kinetic energy acting on the objects involved.

Front

What are the factors of kinetic energy?

Back

Mass and velocity.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate or decelerate (speed up or slow down). Examples of unbalanced forces include air resistance and friction.