Shared Flashcard Set

Details

EMM Lesson 19
Motion of a Mousetrap Car
10
Science
8th Grade
01/11/2012

Additional Science Flashcards

 


 

Cards

Term
Where does the energy stored in the spring come from?
Definition
Energy in the spring comes from the work we did on the bar. We apply our effort force to the bar, move the bar and that stores energy in the spring.
Term
What force makes the mousetrap car move?
Definition

The string pulling the axle.

 

The string does work on the car, transforming the potential energy to kinetic energy.

Term
What force causes the mousetrap car to decelerate (slow)?
Definition
Frictional forces cause car to slow.
Term
The speed of an object changes when an __________  _________  acts on it.
Definition
unbalanced force
Term
A ________   ________ acting for a short time can significantly change the motion (speed ) of an object.
Definition
large force
Term
A ___________  _________  acting for a long time can significantly change the motion (speed) of an object.
Definition
small force
Term
Energy that has been stored in a spring when it is compressed is ________  _________.
Definition
potential energy
Term
When the mousetrap spring decompresses, the potential energys is transformed into into   ________   _______.
Definition
kinetic energy
Term
Kinetic energy is defined as ___________.
Definition
energy of motion.
Term
List three reasons the mousetrap car slowed down:
Definition
  1. frictional forces being greater than the kinetic energy (forward motion of the car).

  2. the energy of motion was transformed into heat.

  3. the string was no longer doing work on the axle and wheel.

Supporting users have an ad free experience!