Newton's Laws of Motion
Is 45 lbs. a scalar or a vector quantity?
Vector! Weight is a vector quantity because gravity is taken into account (pulling downwards)
What is the force that always acts in a downward direction? Hint: this value changes depending on the planet and on Earth is equal to 9.8 m/s/s.
Gravitational Force
Is momentum a scalar or vector quantity? Why?
Momentum is a vector quantity because we need to include a direction with momentum. Ie: 42 kg*m/s North
This simple machine allows for movement of objects by rolling in order to reduce friction.
Wheel & Axle
What is the name of the famous cat on the internet known for it's very grumpy expressions?
Grumpy Cat (real name is Tardar Sauce)
Is 92 degrees a scalar or vector quantity?
Scalar! We do not take direction into account when measuring temperature.
What is the force called that is exerted on objects by a rope or string?
Tension force.
What is potential energy?
Stored energy.
This simple machine is responsible for splitting objects in two.
A wedge
How many toes do cats have on their front paws?
Five. Unless they have polydactyly, then 6!
For every action there is an equal and opposite reaction. Which of Newton's Laws does this describe?
Newton's Third Law.
Name two different surfaces: One with high friction and one with low friction.
Answers may vary. An example of high friction could be dirt or concrete. Low friction could be ice or plastic sheets
What is the equation for calculating momentum? What does each variable in the equation stand for?
P=m*v. P-momentum, m-mass, v-velocity
This simple machine turns rotation into linear movement through torque (twisting)
Screw
What is the function of whiskers on a cat?
To judge distance, sense objects, and help with balance. Used for navigation.
Describe the difference between speed and velocity.
Speed is the distance/time of an object. Velocity is the displacement/time. Velocity takes into account the direction of movement!
What are the four fundamental forces?
Strong force, electromagnetic force, weak force, gravitational force
In a collision, kinetic energy can be transferred to different types of energy. Name at least one type of energy that kinetic energy may be transferred to in a collision.
Answers may vary: Heat, light, or sound.
This simple machine is a bar that moves around a fixed point in order to redirect force over a distance, making it easy to lift heavy objects.
Lever
What is the cat breed that lacks fur?
Sphynx
Skibidi the scientific squirrel wanted to see what would hit the ground first: himself, who weighs 1.5 pounds, or his favorite acorn which weighs 5 grams. He created a pile of leaves at the bottom of a tree for cushion, climbed high in the tree, and jumped at the same time as releasing his acorn from the same height. Which hit the ground first and why?
They hit the ground at the same time but with different forces. They fall at the same rate due to Newton's Second Law. (Remember Galileo's falling objects??)
Applied force, normal force, gravitational force, friction force.
In this type of collision, there is a loss of total kinetic energy.
Inelastic Collision
This simple machine is a wheel in combination with a rope-like material that works to redirect force.
Pulley
What is the term for a group of cats?
A clowder