A
What is the definition of mass?
The amount of matter in an object; how much “stuff” it is made of.
What is a force ?
A push or a pull
What can a force do ?
A force can can change an object’s shape, speed, or direction.
What is speed ?
How fast or slow something is moving
What is the meaning of gravity?
A force that pulls objects toward the center of the Earth.
What does tension mean in physics?
Tension is a pulling force in a stretched rope, string, or cable.
What does clockwise mean?
Turning in the same direction as the hands of a clock.
What is drag ?
The force of air or liquid particles rubbing against a moving object, slowing it down.
What is the symbol for newton ?
N
What are unbalanced forces?
Unbalanced forces are forces that are not equal, causing an object to change speed or direction.
What unit used to measure force ?
newton
What does it mean to accelerate?
To speed up or move faster.
What is thrust?
The force from an engine that pushes an object.
What does pivot (rotate) mean?
A fixed point that an object turns [rotates] around.
What is air resistance ?
The friction of air particles rubbing against a moving object, slowing the object down.
What is the meaning of anticlockwise?
Turning in the opposite direction to the hands of a clock.
What are balanced forces?
Balanced forces are forces that are equal in size and opposite in direction, so there is no change in motion.
What is a moment ?
The turning effect of a force around a pivot.
What is weight ?
The force of gravity acting on an the mass of an object.
What is the definition of upthrust?
An upward force from a liquid or gas that helps objects float.
What does the term stationary mean?
Not moving; staying in the same place.
What does a force diagram show ?
A force diagram is a drawing that shows the forces acting on an object using arrows.
What is the definition of constant?
Staying the same and not changing.
What does equilibrium mean?
Equilibrium is when forces on an object are balanced and it stays still or moves at a constant speed.
How would you explain friction?
force that slows things down when two surfaces rub against each other.