Newton's 1st Law of Motion
Define inertia.
The tendency of an object to resist changes in its motion.
What happens to an object with no external forces acting on it?
It continues to stay at rest or moves with a constant velocity.
What is another term for Newton's 1st Law of Motion?
Law of Inertia
A car abruptly stops, causing its passengers to jerk forward. Which Law of Motion explains this?
Newton's 1st Law of Motion
An object at rest tends to stay at rest and an object in motion tends to stay in motion at the same speed and in the same direction. Which Law of Motion is this?
Newton's 1st Law of Motion
What is the formula for Newton's 2nd Law of Motion?
F = m * a
If the force acting on an object increases, what happens to its acceleration?
Its acceleration also increases.
What is the unit of force?
Newton (N)
A person pushes a shopping cart with a force of 20 N, resulting in an acceleration of 2 m/s². What is the mass of the cart?
10 kg
A force of 50 N is applied to an object with a mass of 10 kg. What is the object's acceleration?
5 m/s²
What is another term for Newton's 1st Law of Motion?
Law of Inertia
What is the unit of force?
Newton (N)
When you sit on a chair, you exert a force on the chair. What is the reaction force?
The force exerted by the chair on you
What is the unit of measurement for acceleration?
m/s²
What happens to an object when the forces acting on it are balanced?
It remains in a state of constant motion.
A car abruptly stops, causing its passengers to jerk forward. Which Law of Motion explains this?
Newton's 1st Law of Motion
A person pushes a shopping cart with a force of 20 N, resulting in an acceleration of 2 m/s². What is the mass of the cart?
10 k g
A rocket pushes gas out of its engine, resulting in the rocket moving upward. What are the action and reaction forces in this scenario?
Action force: pushing gas out; Reaction force: rocket moving upward
An object travels 100 meters in 20 seconds. Calculate its speed.
5 m/s
A car is moving at a constant speed of 50 km/h. Is this an example of balanced or unbalanced forces?
Balanced forces
An object at rest tends to stay at rest and an object in motion tends to stay in motion at the same speed and in the same direction. Which Law of Motion is this?
Newton's 1st Law of Motion
A force of 50 N is applied to an object with a mass of 10 kg. What is the object's acceleration?
10 kg
When you jump off a boat, the boat moves backward. What are the action and reaction forces in this scenario?
Action force: jumping off the boat; Reaction force: boat moving backward
An object moves at a constant speed of 10 m/s for 5 seconds. What is its total displacement?
50 meters
An object is at rest on a table. Identify the forces acting on it.
Force of gravity and normal force