Force and Motion
This term describes a push or pull on an object
What is a force
Every action has an equal and opposite reaction describes which law?
What is Newton’s Third Law?
Choose a team to lose 500 points
TRIPLE POINTS
This force opposes motion between two surfaces in contact.
What is friction?
The main force keeping the Moon in orbit around Earth
What is gravitational pull?
Light from galaxies shifting toward red shows they are doing this
What is moving away from Earth?
Have one team lose 100 points
DOUBLE POINTS
When an object changes shape due to a force, it is called this.
What is deformation?
If mass increases while force stays the same, acceleration will do this.
What is decrease?
When multiple forces act on an object, the combined result is called this.
What is net force?
Earth revolves around this object
What is the Sun?
Take 300 points from one team of your choosing
DOUBLE POINTS
This shows that the universe is expanding.
What is redshift?
What happens to deformation when more force is applied to an object?
What is it deforms more?
An unbalanced force causes this change in motion.
What is acceleration?
A cart speeds up when pushed because the forces are this
What is unbalanced?
Choose a team to lose 200 points
The apparent backward motion of Mars is caused by this
What is Earth passing Mars in its orbit?
Each element produces a unique pattern of light called this.
What is the absorption spectrum?
Two objects hitting each other is known as this.
What is a collision?
DOUBLE POINTS
Which law explains why Earth would move in a straight line if gravity disappeared?
What is Newton’s First Law (inertia)?
When a person jumps off a boat, the boat moves backward because of this type of force
What is a reaction force?
DOUBLE POINTS
Orbits depend on the balance between gravity and this
What is speed (or velocity)?
Larger atomic nuclei require these conditions to fuse.
What are extreme temperatures and pressure
Choose a team to gain 100 points (not your team)
Strong forces can permanently change an object by causing this.
What is damage?
When a skateboarder pushes a wall and rolls backward, what force acts back on them?
What is the wall pushing back on the skateboarder?
To design a fair test studying mass and motion, which variable must stay the same?
What is the amount of force applied?
If gravity between Earth and the Sun vanished, Earth would move this way.
What is in a straight line?
Stars appear to rotate counterclockwise around Polaris because of this.
What is Earth’s rotation?