Vocabulary
Motion and Forces
Changing Motion
Work and Energy
Simple Machines
100
A push or pull is called
What is a force
100
Words such as left, right, over, above, and below are used to describe an objects what
What is position
100
If two puppies are pulling on a toy and the toy does not move, this shows an example of what type of force
What is a balanced force
100
The ability to do work (what do you need to do something)
What is energy
100
People use these to make work "easier"
What are simple machines
200
The use of force to move an object a certain distance
What is work
200
True or False: distance means how fast you must travel to get from one place to another
What is false: distance just measures how far two things are
200
Forces that are not equal to each other are called
What is unbalanced forces
200
Give an example of kinetic energy
What is an object moving
200
What type of simple machine do you use everyday to enter the school? What makes it a simple machine?
What is an inclined plane, it is a ramp to help us enter the building
300
A force of attraction, or pull, between objects
What is gravity
300
This force causes an object to accelerate as it falls toward Earth. A--Gravity B--Friction C--Inertia D--Velocity
What is A gravity
300
True or False: the size of a force affects an objects acceleration?
What is true: the stronger the force, the faster the object will accelerate
300
Give an example of potential energy
What is car at top of hill
300
What would you use a wedge for?
What is to cut something in half
400
The distance traveled in an amount of time
What is speed
400
This force works against objects in motion (slows them down to a stop)
What is friction
400
What force will stop a moving skateboard? A--friction B--Gravity C--Newtons D--Balanced forces
What is A--friction
400
When energy is changed from one form to another it is called A--transformation B--transferred C--kinetic D--potential
What is A--transformation
400
Which of the following is a compound machine A--Lever B--Pulley C--Scissors D--Wedge
What is C--scissors
500
Something that has only a few parts and makes it easier to do work
What is a simple machine
500
What is the difference between speed and velocity
What is speed is a change in distance over time and velocity describes the speed and direction of an object
500
Which would be easier, 2 people pushing a car on an ice hockey rink, or 5 people pushing a car through grass? Why?
What is 2 people pushing on ice. There is less friction between the car tires and ice than the tires in grass so the car will move easier
500
Name the 6 forms of energy
What is chemical, electrical, light, mechanical, thermal, nuclear
500
Name the 6 types of simple machines
What is inclined plane, wheel and axle, pulley, screw, wedge, lever
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