TEST: speed, velocity, acceleration, Newton, simple machines

The geese fly 23 mph to the south when they migrate for the winter. This is an example of:

• speed

• velocity

• acceleration

Tags

NGSS.MS-PS3-1

The athlete swam 200 meters in 20 seconds. This is an example of:

• speed

• velocity

• acceleration

Tags

NGSS.MS-PS3-1

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Tags

NGSS.MS-PS3-1

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

1. Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.
• Speed describes how an object is changing its velocity.
• Speed and velocity both describe how an object is speeding up.
• Only velocity includes the direction an object is traveling.

Acceleration describes how an object’s velocity is changing.  Which of the following scenarios provides the best example of an accelerating object?

• A car driving at a constant speed
• A book sitting on top of a high shelf
• A toy train traveling in a circle
• A toy boat floating in a bathtub

The tornado is traveling northwest at 20 mph. This is an example of:

• speed

• velocity

• acceleration

Avery likes to walk 30 feet in 10 seconds. What is her speed?

• 3 feet/sec

• 6 feet/sec

• 10 feet/sec

• 2 feet/sec

Tags

NGSS.MS-PS3-1

Changes in our speed, direction or both are called _________.

• gravity

• changes

• acceleration

• displacement

Tags

NGSS.MS-PS2-2

You ride your bike in a straight line at a constant speed of 10 km/h.

• Acceleration occurred because speed increased.

• Acceleration did not occur because neither speed nor direction changed.

• Acceleration occurred because you changed directions.

• Acceleration occurred because speed decreased.