Force is measured in ❌ Mass is measured in ❌ Acceleration is measured in ❌
is a force that opposes motion
What is the equation to find force?
a=mf
m=a+f
f=ma
a=m-f
A balanced force makes a change in motion (net force)
Tick all correct statements about unbalanced forces:
The two forces cancel each other out
Makes a change in motion on an object
Make no net force
Makes an object move in the direction he larger force is pointing
Two opposite forces are acting on an object, making the object accelerate. This is an example of an unbalanced a balanced( an unbalanced, a balanced ) force.
Two opposite forces are acting on an object, but the object doesn't move. This is an example of a balanced an unbalanced( a balanced, an unbalanced ) force.
Check all examples of non-contact forces:
Friction
Gravity
Tension
Electrostatic
Magnetism
Friction can cause:
heat
acceleration (speeding up)
acceleration (slowing down)
damage
❌ is strongly magnetic ❌ are weakly magnetic ❌ are an alloy of the two.
If a magnet is cut in half, it ill still have a north and south end.
Forces always act in pairs
When falling, (e.g on earth due to gravity) mass does not effect acceleration. (Mass would effect how hard an object hits the ground, however).
You jump out of a stationary helicopter. After 4 seconds, what will your acceleration be? Answer: m/s²
When you step on the scales, your mass is 45kg. What is your weight? Answer: N
