that is false as energy is velocity squared, or 4 times
False. Balanced forces acting on an object will not change the object's velocity. When forces are balanced, there is no change in the object's velocity as there is no net force acting on the object.
false
False. Velocity is the result of applying force to an object over time, but it is not calculated by simply multiplying force and time. Velocity is the rate of change of an object's position with respect to time.
False. Momentum is a product of an object's mass and velocity, so even if the object is small, it can have a large momentum if it has a high velocity. It doesn't need to be stationary to have a large momentum.
False. The momentum of an object is the product of its mass and velocity, so if the velocity decreases while the mass remains constant, the momentum of the object will decrease.
True. The momentum of an object is directly proportional to its mass and velocity. If either the mass or the velocity of an object changes, its momentum will also change accordingly.
True. When an object speeds up, its velocity increases, and therefore its momentum also increases. Momentum is the product of an object's mass and its velocity, so an increase in velocity results in an increase in momentum.
True. Got that right on a test :)
False. A negative slope on the velocity vs time graph indicates that the object is decelerating or slowing down, but it is still accelerating in the opposite direction.
True. A force acting in the opposite direction to the motion of a moving object will slow it down or stop it. This is known as friction or drag.
False. A negative slope on a velocity vs. time graph indicates that the object is decelerating, not that it is not accelerating. Acceleration and deceleration are both forms of acceleration, but in opposite directions.
False.