U1.2 Forces, energy, power Flashcards
1
Q
What does Newton’s first law state?
A
Objects with balanced forces acting on them will stay at rest, or in constant motion.
2
Q
What can forces acting on an object change?
A
The shape of the object,
The speed of the object,
The direction in which the object is moving
3
Q
What does Newton’s second law state
A
The direction of the object’s acceleration is the same as the direction of the unbalanced force,
The magnitude of the object’s acceleration varies in direct proportion with the size of the unbalanced force, The magnitude of the object’s acceleration varies inversely with the mass of the object