Unit 4 Forces and Motion

Motion is...

• an object changing position over time relative to a reference point

• an object that appears to stay in place when observing an object moving

• distance traveled by an object divided by the time taken to travel that distance

Reference Point is

• an object changing position over time relative to a reference point

• an object that appears to stay in place when observing an object moving

• the distance traveled by an object divided by the time taken to travel that distance

A soccer ball is kicked across the field. The soccer ball was far from the goal. It moved closer to the goal. What is the object in motion?

• soccer ball

• goal

A soccer ball is kicked across the field. The soccer ball was far from the goal. It moved closer to the goal. What is the reference point?

• soccer ball

• goal

What is the formula for calculating speed?

• Distance / Time

• Distance / Speed

• Speed x Time

What is the formula for calculating time?

• Distance / Time

• Distance / Speed

• Speed x Time

What is the formula for calculating distance?

• Distance / Time

• Distance / Speed

• Speed x Time

The strength of a force is measured in units called...

• meters

• seconds

• pounds

• Newtons

The length of the arrow shows the ______ of the force.

• direction

• strength

When the net force equals zero, the forces are...

• balanced

• unbalanced