Energy
If an object is moving, it has this type of energy.
What is kinetic (energy)?
An object will only change its motion if it experiences this.
What is a(n unbalanced) force?
If a full shopping cart and an empty shopping cart are pushed with the same force, the empty cart accelerates faster because it has less of this.
What is mass?
When two objects collide, according to Newton's 3rd Law of Motion, the size of the forces on the two objects will be this.
What is equal?
While speed tells you how fast an object is moving, velocity includes speed plus this.
What is direction?
If energy is stored in an object, such as a stretched rubber band, it has this type of energy.
What is potential energy?
This type of force causes objects to slow down and eventually stop when they are moving along a surface.
What is friction?
When a bowling ball and a tennis ball are pushed with the exact same amount of force, this one will experience a greater acceleration.
What is a tennis ball?
When two objects collide, according to Newton's 3rd Law of Motion, the direction of the forces on the two objects will be this.
What is opposite?
If a moving object is pushed in the same direction it is already moving it will do this.
What is speed up?
When an object slows down due to friction, kinetic energy is converted to this type of energy.
What is thermal energy (or heat)?
If an object experiences an unbalanced force it will do this.
What is change its motion?
This is the standard SI unit used to measure force, named after the famous scientist who formulated the laws of motion.
What is a newton?
What is two?
If an object that is not moving is pushed in any direction it will do this.
What is start moving?
The relationship between kinetic energy and this variable is linear (the graph is a straight line).
What is mass?
If the sum of all forces on an object cancel each other out, then the object is experiencing this type of force and it will not change its motion.
What is a balanced force?
To make a soccer ball change its motion by twice as much without changing its mass, you must double this.
What is the force (exerted on the ball)?
If a a golf ball collides with a ping pong ball, exerting a force of 5 N to the right, the ping pong ball will exert a force of this size and direction on the golf ball.
What is 5 N to the left?
An object moving to the left will slow down, stop or change direction if it is pushed in this direction.
What is right?
The relationship between kinetic energy and this variable is exponential (the graph is curved).
What is velocity?
This is the sum of all forces applied to an object.
What is the net force?
If a 2 kg toy car is accelerated at a rate of 3 m/s2, then this must be the force applied to the car.
What is 6 (newtons)?
In a collision two objects, the objects might experience a different effect even though the force on each object is the same if this is different between the two objects.
What are the masses?
What is the empty shopping cart?