One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
What is a pendulum?
What force causes a pendulum to swing back toward its lowest position?
What is the bob of a pendulum?
What is the period of a pendulum?
What is the frequency of a pendulum?
What is one complete oscillation of a pendulum?
Which part of a pendulum holds the bob?
What happens when the length of a pendulum increases?
Which factor does not affect the period of an ideal simple pendulum?
What is the equilibrium position of a pendulum?
What is the amplitude of a pendulum?
At which point does a swinging pendulum have its greatest speed?
At which point does a pendulum have its greatest gravitational potential energy?
Why does a pendulum eventually stop swinging?
Which device commonly uses a pendulum to keep time?
What type of energy does a moving pendulum possess?
What happens when a pendulum is released from a raised position?
What is the approximate acceleration due to gravity on Earth's surface?
Which formula gives the period of a simple pendulum for small oscillations?
If the length of a simple pendulum is increased, what happens to its frequency?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
16 questions