Newton's 1st & 2nd

If a truck hits a wall, what happens to the crate in the back of the truck?

• The crate stops immediately.

• The crate continues moving forward until it hits something.

• The crate falls out of the truck.

• The crate is pushed back into the truck.

What happens to an object in motion when no unbalanced force acts on it?

• An object in motion tends to remain in motion in the absence of an unbalanced force.

• An object in motion will eventually come to a stop due to friction.

• An object in motion will change direction randomly.

• An object in motion will accelerate indefinitely.

What is inertia?

• Inertia is the tendency of an object to resist changes in its state of motion.

• Inertia is the force that causes an object to accelerate.

• Inertia is the speed at which an object moves in a straight line.

• Inertia is the mass of an object multiplied by its velocity.

What is the acceleration of an object if a net force of 10 N is applied to a mass of 2 kg?

• 3 m/s²

• 4 m/s²

• 5 m/s²

• 6 m/s²

How does mass affect the acceleration of an object when a constant force is applied?

• Greater mass results in less acceleration when the same force is applied.

• Greater mass results in more acceleration when the same force is applied.

• Mass has no effect on acceleration when a constant force is applied.

• Acceleration is independent of mass when a constant force is applied.

What is Newton's 1st Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

• An object will accelerate in the direction of the net force acting on it.

• For every action, there is an equal and opposite reaction.

• An object in motion will eventually come to a stop unless acted upon by a force.

What does it mean for an object to be in equilibrium?

• An object is in equilibrium when the net force acting on it is zero, resulting in no change in motion.

• An object is in equilibrium when it is at rest and not moving at all.

• An object is in equilibrium when it is moving at a constant speed in a straight line.

• An object is in equilibrium when the forces acting on it are unbalanced.

What is the relationship between force, mass, and acceleration?

• Force equals mass times acceleration (F = ma).

• Force is equal to mass divided by acceleration (F = m/a).

• Force is the product of mass and velocity (F = mv).

• Force is independent of mass and acceleration.

What is the formula for calculating acceleration?

• Acceleration = (Final Velocity + Initial Velocity) / Time

• Acceleration = (Final Velocity - Initial Velocity) * Time

• Acceleration = (Final Velocity - Initial Velocity) / Time

• Acceleration = Final Velocity / Time

What is the unit of mass in the International System of Units (SI)?

• g

• lb

• kg

• oz