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 quantity of motion is defined as the product of an object's mass and velocity?
Whose teachings dominated scientific thought for almost two thousand years?
Who discovered the laws of motion and gravitation, laying the foundation for much of modern physical science?
What is the velocity of an object that traveled 19 m in 2.0 s?
What is the SI unit of work?
What is a simple machine consisting of a wheel over which a rope or cable passes?
What is the ideal mechanical advantage of an inclined plane with a length of 3.0 m and a height of 1.5 m?
What is the velocity at which air resistance stops a falling object from accelerating?
What is any mathematical quantity that has both magnitude and direction?
A crate was being pushed to the left by one person with a force of 35 N and to the right by another person with a force of 26 N. What is the net force acting on the crate?
What is the momentum of a 5 kg bowling ball rolling forward at 7 m/s?
What is the space relative to which motion is measured?
Together, the branches of physics discovered before 1900 are called ___.
The sum of two or more vectors is the ___.
An object that hangs from a fixed point and swings back and forth because of gravity is a(n) ___.
The distance an object travels per unit of time is ___.
The measure of how well a machine converts input work to output work is ___.
The center-seeking force that causes an object to travel in a curved path is called ___.
The simple machine which is like an inclined plane that modifies the applied force and directs it to the side is the ___.
Formula for Newton's second law of motion:
Formula for the relationship between free-fall distance and the acceleration of gravity:
Formula for the weight of an object found using Newton's second law and gravity:
Formula for the measure of how quickly an object moves:
Formula for the momentum of an object:
Formula for calculating energy transferred from one object to another by force:
Which of the following statements correctly describes work and energy?
What principle states that for every action there is an equal and opposite reaction?
What principle states that the velocity of an object does not change unless the object is acted upon by an external force?
What is the rate of doing work?
What is the term for a measure of how much help a machine provides?
What simple machine is a sloping surface that allows an object to be raised without being lifted straight up?
What is the output distance of a screw?
Which of the following quantities represents any change in an object's position?
Which device is considered a circular lever and can be used to multiply distance, speed, or force?
Which of the following forces is the attractive force that exists between any two bodies and is caused by their mass?
Which of the following is a form of assistance that a simple machine can provide?
How are levers classified?
What type of friction affects stationary objects, preventing them from moving?
What branch of physics addresses the effects of forces on matter?
What type of quantity consists of only a magnitude, with no direction?
What SI unit is used to measure power?
What is a combination of one or more fixed pulleys and one or more movable pulleys called?
What term do physicists use to refer to any change in velocity?
What type of friction affects a sliding object already in motion?
What is the term for devices used to multiply force for the purpose of doing work?
What is the study of motion and forces?
Formula for the ideal mechanical advantage of a screw:
Formula for the magnitude of kinetic friction force:
Formula for the rate of doing work:
Formula for the measure of how well a machine converts input into output work:
General formula for mechanical advantage under ideal conditions:
A certain point on a Cartesian plane can be represented by the ordered pair (2,-3), representing the point's positions along the x-axis and y-axis. Is the point's position on the plane a scalar or a vector? Why?
A man needs to move a large rock. He has supplies with which he can make a simple lever. Which of the following lever designs should he choose? Why?
What would be a good way to increase the efficiency of a machine?
A student calculated that the net force acting on a car with forces 70. N left and 700. N right is 49,000 N to the right. Is his answer correct? If not, what should he have done?
What is the total displacement of a person who walked 137 m north and then 39 m south?
How far will an object fall if it is affected by only gravity and falls for 3.0 s?
A cardboard box weighing 90. N is pushed across a hardwood floor. The coefficient of kinetic friction is 0.30. What is the minimum force that must be applied to keep the box moving?
What force is required to accelerate a 180,000. kg train engine at a rate of 2.0 m/s²?
Calculate the weight of a 180,000. kg train engine.
Calculate the work performed by a moving crew who lifted a couch 0.80 m off the ground with a force of 700. N.
Using a simple machine, a person put in 54.0 J of work; the work output was 50.1 J. Calculate the efficiency of the simple machine.
Calculate the ideal mechanical advantage of a jackscrew with a handle of 45.0 cm and a pitch of 0.500 cm. (Use π = 3.14)
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.
40 questions