Force & Motion
What does it mean if an object is in motion?
The object is moving.
What is matter made of?
Atoms.
True or False? Energy can be created and destroyed.
False.
How do scientists test how changing one thing affects another?
They conduct experiments or investigations.
What is a circuit?
The pathway taken by an electric circuit.
A moving object has _____________ energy.
What is "kinetic?"
What is mass?
The amount of matter in an object.
What are some different forms of energy?
thermal energy, radiant energy, electrical energy, sound energy, etc.
What is a hypothesis?
An educated guess based on facts on what might happen during an investigation.
What three things do you need to make a simple circuit that will light a bulb?
A light bulb, wire, and battery.
How can an object's speed change over time?
It can increase, decrease, or stay the same
Is soda a mixture or a solution?
Solution.
What do we call it when one form of energy changes into another form?
Energy transformation.
What is the first step of the scientific method?
Scientists start by asking a question they hope to answer.
What is a conductor?
A material that allows electricity to flow easily through it.
How can a force affect an object?
It can make an object move, stop, or change speed/direction.
When two or more substances are combined, what can result?
Mixtures or solutions.
How long do nonrenewable energy sources take to form?
Millions of years.
What is an independent variable?
A variable changed by the experimenter on purpose.
_______ electricity is the transfer of negatively charged particles between materials.
Static electricity.
What happens when the net force of an object do not sum up to zero net force?
The forces may cause changes to the object's speed or direction.
During a phase change, what is true about the mass of the matter involved?
It stays the same.
How do fossil fuels affect the ecosystem?
They cause air pollution, water pollution, harm to wildlife, habitat loss, etc.
What is the difference between quantitative data and qualitative data?
Quantitative data is measurable. Qualitative data is observable through senses.
What do you need to make an electromagnet?
Wrapping a wire around an iron object, like a nail, and passing current through a wire, like a battery.