Physics NCFE: Motion of Objects 1.1.1

While riding on a motorbike down the road, which method would be the best for estimating how fast you are traveling?

• Comparing yourself to cars you are traveling along side.

• Feeling the wind on your face.

• Noticing how fast you are passing by a row of fence posts.

• Notice how fast you are passing cars traveling the other direction.

In order to determine whether an object is moving, what is needed? Select all that apply.

• A point of reference

• A frame of reference

• stopwatch

• video camera

Select the item below which are scalars.

• time

• velocity

• speed

• acceleration

Select the item below which are scalars.

• density

• force

• energy

• momentum

Select the item below which are vectors.

• density

• force

• energy

• momentum

Select the item below which are vectors.

• distance

• displacement

• time

• Impulse

A kayaker is paddling up stream at -5 m/s and the river is flowing down stream at +3 m/s. What is the paddler's resulting velocity?

• + 2 m/s

• -2 m/s

• +8 m/s

• -15 m/s

A kayaker is paddling up stream at -5 m/s and the river is flowing down stream at +3 m/s. What is the paddler's resulting speed?

• + 2 m/s

• -2 m/s

• +8 m/s

• -15 m/s

Which is the correct description of the motion of this object?

• Constant acceleration

• stopped

• positive velocity

• negative velocity

Which object started with the highest velocity?

• A

• B

• C

• D