Measuring Mass & Converting Units
Convert 3 kilograms to grams.
3000 grams
What happens when forces are unbalanced?
The object changes its motion (moves or changes direction).
If a runner moves at 5 m/s for 20 seconds, what distance does he travel?
100 m
When the ball rolls down, it has what kind of energy?
Kinetic energy
If a bar is taller, does it show a greater or smaller value?
Greater value.
A pencil has a mass of 25,000 g. How many kilograms is that?
25 kg
Give one example of an unbalanced force in real life.
A ball being kicked, a car starting to move, etc.
Who studied how objects move and fall?
Galileo Galilei
True or False: Energy can change from potential to kinetic.
True
Why are bar graphs useful in Science experiments?
They help us compare and visualize results easily.
What tool do we use to measure mass?
A balance or scale
A push or a pull on an object is called a ______.
Force
Motion means a change in an object’s ______.
Position
Energy in motion is called ______ energy.
Kinetic energy
What do bar graphs show?
Comparisons between data.
What is the base unit of mass in the metric system?
Gram (g)
True or False: Balanced forces cause motion.
False
What is the formula for speed?
Speed = Distance ÷ Time
Stored energy or energy of position is called ______ energy.
Potential energy
What goes on the X-axis of a bar graph?
Categories or names.
1 kilogram = ______ grams
1000 grams
When two forces are equal, what happens to the object?
It stays still or moves at the same speed.
A car travels 100 m in 10 seconds. What is its speed?
10 m/s
A ball on top of a hill has what kind of energy?
Potential energy.
What goes on the Y-axis of a bar graph?
Numbers or quantities