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It is push or pull.
Force
It is the force that pulls objects toward the center of the earth.
Gravity
If there are ............................ forces acting on an object, so this object will move.
unbalanced
It is any change in the position of an object relative to a fixed point.
Motion
Some motions are easy to see, such as rotation of the earth around the sun.
False
................................... as the stored energy in batteries.
Chemical potential energy
It is a force that causes an object to move a distance.
Work
kinetic energy is the amount of energy that is stored in an object due to its position.
False
A child at the top of a playground slide has a kinetic energy.
False
It is the moment when two objects hit or make contact in a forceful way.
collision
When two objects collide with each other.................... transfer occurs
energy
It is a very heavy steel ball that swings on a cable to help construction workers knock down walls or parts of buildings.
Wrecking ball
They are used in cars to keep the driver and also the passengers from moving forward when the car stops suddenly.
Seatbelt
During a crash, airbags ..................... automatically when sensors in the car detect a crash.
inflate
The train has less kinetic energy than the car.
False
