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True or False. A force is a pull. With no force there would be no movement.
True, a force is a push or pull. With no force there would be no movement.
True or False. A force is used to stop an object but it is NOT used to move an object.
False, a force is used to stop and move an object!
When one force is stronger than the other force, are the forces balanced or unbalanced?
When one force is stronger than the other force, the forces are unbalanced.
Which will require the least amount of force to push up a hill, an elephant or a kitten?
The kitten will require the LEAST amount of force to push up a hill.
True or False. Energy that refers to MOTION is an example of KINETIC energy.
True, KINETIC energy refers to the energy of MOTION.
When forces are balanced and cancel each other out, does the object change motion or does the object stay at rest?
When forces are balanced and cancel each other out, the object stays at REST.
Which one will have less friction? A person riding a scooter on the road or a person riding a scooter on the grass.
A scooter riding on the road will have LESS friction.
What type of energy does friction create?
Thermal Energy, rub your hands together, as we create friction between our hands, they get warmer!
In what two ways can energy be classified as?
Kinetic Energy or Potential Energy.
True or False. Mechanical Energy is the energy of motion. It is classified as kinetic and potential energy.
True, Mechanical Energy is the energy of MOTION and can be classified as both kinetic and potential energy.
True or False. Friction causes an object to speed up.
False, friction causes an object to SLOW down!
Which of the following is an example of balanced forces? An object sinking to the bottom of the pool, a team winning tug of war, an apple falling for a tree, or a human doing a handstand without falling.
An example of balanced forces is a human doing a handstand without falling. This human is balancing upside down! She is not falling down.
True or False. Energy that is STORED is an example of POTENTIAL energy.
True, energy that is STORED is an example of POTENTIAL energy.
True or False. ALL moving objects have kinetic energy.
True, ALL moving objects have kinetic energy.
Is radiant energy classified as kinetic or potential energy?
Radiant energy is classified as kinetic energy. Light travels/moves from the source to the place it is cast.
True or False. A force is used to make an object move FASTER or SLOWER.
True, a force is used to make object move FASTER or SLOWER!
Which will require the most amount of force to push up a hill, an elephant or a kitten?
The elephant will require the MOST amount of force to push up a hill.
Is sound energy classified as kinetic or potential energy?
Sound energy is classified as KINETIC energy. The matter around us vibrates/moves when sound travels!
True or False. Thermal energy is classified as potential energy.
False, thermal energy is classified as KINETIC energy. The particles move inside all matter. The higher the temperature, the faster the particles move!
Which form of energy is shown through a pathway of electrons?
Electrical energy is electricity, the charged particles (electrons) flow in a PATHWAY to generate electricty!
Which one will have more friction? A person riding a scooter on the road or a person riding a scooter on the grass.
A scooter riding on the grass will have MORE friction.
What does the amount of kinetic energy depend on?
The object's SPEED and MASS.
True or False. Because energy is transformed (changed), energy CANNOT be created or destroyed.
True, because energy is transformed, energy CANNOT be created or destroyed.
When a laptop is turned on, the electrical change is transformed into which two types of energy?
When a laptop is turned on, the electrical energy is transformed into RADIANT energy and SOUND energy.
When a stove is turned on the electrical energy is transformed into which type of energy?
When a stove is turned on the electrical energy transforms into THERMAL energy. The stove becomes warm!