Force, Motion, and Newtons Laws
A push or pull on an object
What is force?
Which of the following is a testable question?
1. How do plants grow?
2. What is the affect of fertilizer on the height of plants?
2.What is the affect of fertilizer on the height of plants?
3mm converted to centimeters
0.3cm
Which tools are used to measure length?
Ruler, tape measure, meter stick
Speed is...
When a net force acting on an object is zero and no change in motion occurs
What is...Balanced Force?
A hypothesis should be written as an ___ /____ statement and should mention both the dependent and independent variables.
if / then
The largest prefix in the metric system.
What is kilo?
Which tool is used to measure liquid
Graduated cylinder
To solve for distance do the following...
Multiply Speed X Time
An object at rest stays at rest and an object in motion stays in motion, in the same direction at the same speed, unless acted upon by __________________.
An unbalanced force
The variable that changes as a result of your experiment.
What is..... the dependent variable?
How many meters are in one dekameter?
10 meters
A graduated cylinder measures volume in what unit?
milliliters
To solve for speed...
Divide distance by time
For every action force there is an __________ & __________ reaction force.
equal & opposite
The variable that you change on purpose to test its effect.
What is....the independent variable
What is 25 cg converted to grams?
0.25 g
What is the base unit for mass in the metric system?
Grams
To solve for time...
Divide distance by speed
Which of Newton's Laws states..... "The greater the force, the greater the acceleration. The greater the mass, the greater the force needed for that same acceleration."
Newton's 2nd Law
The variable that you keep the same so that it doesn't affect the outcome of your experiment.
What is the control variable?
When converting meters to decimeters you should move the decimal to the _______ and _________.
Right and Multiply
The base unit for distance/length in the metric system.
What is the meter?
If Lilah runs 20 meters in 40 seconds what is her speed
0.5 meters per second