Motion and Design

What best describes force?

• Any heavy weight
• Any lighter weight
• Any push or pull
• Anything measured in pounds

What is 3.45 to the nearest second?

• 3.0
• 3.5
• 4.0
• 5.0

Why do we run vehicle tests 3 times?

• More accurate data
• To give everyone a turn
• To try different locations
• To try different vehicles

What is one thing we changed in the rubber band vehicle trials?

• kinds of vehicles
• Numbers of rubber bands
• size of rubber bands
• Turns of the rubber bands

Which best describes the one thing that changes in an experiment?

• Constant
• Control
• Unit of Measurement
• Variable

Fill in the blanks
________energy is energy of motion while ________ energy is energy that is stored and waiting to be used.

• Kinetic and then potential
• potential then kinetic

Jake's vehicle traveled 3 meters in 7.5 seconds.  The vehicle needs to travel that distance in under 6 seconds.  What should Jake change?

• add more wood blocks
• move the vehicle up a ramp
• take off some of the wood blocks
• use less force

Why are their two views shown?

• A notebook entry must show two views
• it fits better on graph paper
• makes the car easier to build
• most technical drawings have one view

When you add weight to the car, in order for the car to move in the same way it did before, you need to add __________________.  

• more friction
• more pull
• less pull
• less friction

When you add more washers to the pull, the car goes _______________.  

• faster
• slower
• the same speed
• the opposite direction