Think Like a Scientist
Atomic Breakdown
What's the Matter?
Newton Knew It!
Balanced or Busted?
100
This universal law explains why the Moon stays in orbit around Earth.
What is gravity?
100
This positively charged particle is found in the nucleus of an atom.
What is a proton?
100
This state of matter has a definite shape and a definite volume.
What is a solid?
100
A car traveled this distance when it moved at an average speed of 70 mph for 3 hours.
What is 219 meters?
100
A free-body diagram shows a 10 N force to the right and a 10 N force to the left acting on an object.
What are balanced forces?
200
This SI base unit measures mass and is commonly confused with weight.
What is kilogram?
200
This number on the periodic table tells how many protons an element has.
What is atomic number?
200
This state of matter has no definite shape or volume and is easily compressed.
What is a gas?
200
The amount of force that a soccer player kicks a 0.50 kg ball that accelerates 12.6 m/s².
6.3 N
200
A free-body diagram shows a 5 N force upward and a 5 N force downward. The net force is zero, so the forces are classified as this.
What are balanced forces?
300
This SI unit of temperature is so cool it doesn’t even use the degree symbol.
What is Kelvin?
300
Daily Double!
To find the number of neutrons in an atom, subtract this from the mass number.
What is the atomic number?
300
Daily Double!
Melting point, freezing point, and boiling point can be used to describe and identify a substance without changing its identity. These are examples of this type of property of matter.
What is a physical property?
300
According to Newton's First Law of Motion, inertia increases as this property of matter increases for an object?
What is mass?
300
A free-body diagram shows a 5 N force upward and a 5 N force downward. The net force is zero, so the forces are classified as this.
What are unbalanced forces?
400
A washing machine is this type of system because it allows water to enter and exit the wash basket of the machine at various cycles.
What is an open system?
400
An element has a mass number of 23 and an atomic number of 11. This is the number of neutrons it has.
What is 12?
400
Flammability, rusting, and reactivity are examples of this type of property.
What is a chemical property?
400
The average acceleration of race car that can go from a state of rest to 120 meters per second in 10
seconds.
What is 12 m/s2?
400
A free-body diagram shows a 20 N force to the right and a 12 N force to the left. The net force is 8 N to the right, meaning the forces are this type.
What are unbalanced forces?
500
This SI derived unit measures force and is named after a famous scientist.
What is Newton?
500
Although water is made of atoms, a single hydrogen or oxygen atom does not represent water; only when the atoms are chemically bonded does it become this smallest unit that still has the properties of water.
What is a molecule?
500
Crushing a can and burning the can are both changes, but only one forms a new substance; this type of change occurs when matter is transformed into something new that cannot be changed back to its original state.
What is a chemical change?
500
According to this law of motion, balanced forces do not change an object’s motion.
What is Newton's First Law of Motion?
500
Daily Double!
A box has a 30 N force pushing right and friction pushing left. If the net force shown in the free-body diagram is 10 N to the right, the friction force must be this many newtons.
What is 20 N?