A student collects data during an investigation about inertia and acceleration. If the force acting on the objects is constant, which statement about inertia and acceleration is supported by the data? (1 point) Responses An object with a higher mass has more inertia which causes it to speed up less quickly. An object with a higher mass has more inertia which causes it to speed up less quickly. An object with less mass has more inertia which causes it to speed up more quickly. An object with less mass has more inertia which causes it to speed up more quickly. An object with less mass has less inertia which causes it to speed up less quickly. An object with less mass has less inertia which causes it to speed up less quickly. An object with a higher mass has less inertia which causes it to speed up more quickly.
An object with a higher mass has more inertia which causes it to speed up less quickly.
The picture shows a physics lab set up. Why does the disc fall straight down into the glass when we quickly pull the index card away from the glass in a horizontal direction? (1 point) Responses equilibrium equilibrium static friction static friction inertia inertia kinetic friction
The correct answer is inertia. When the index card is quickly pulled away in a horizontal direction, the disc tends to remain at rest due to its inertia. As a result, the disc falls straight down into the glass as it resists the change in its state of motion.
A student is riding the school bus. The bus stops as the driver applies the brakes. Which of these statements best describes this situation?(1 point) Responses There is no force acting on the bus so it stops moving. There is no force acting on the bus so it stops moving. The school bus does not lose or gain kinetic energy. The school bus does not lose or gain kinetic energy. A force is changing the motion of the bus. A force is changing the motion of the bus. The bus is gaining energy because of friction. The bus is gaining energy because of friction.
A force is changing the motion of the bus.
A pitcher throws a baseball to the catcher. The ball's path begins as a straight line, and then its patch curves toward the ground. Which two forces are acting on the baseball?(1 point) Responses
electricity and friction
gravity and friction
inertia and magnetism
nuclear and inertia
Gravity and friction are the two forces acting on the baseball.
Two people are in a rowboat on a river. The current of the river water carries them at a speed of five meters per second even when they are not rowing. What will happen to the boat's motion of no other forces act on the boat?(1 point)
The boat's speed will increase.
The boat's speed will decrease.
The boat's speed will stay the same.
The boat will change direction.
The boat's speed will stay the same.
Inertia is
the resistance of an object to change its motion.
an object's motion.
a moving object's speed and direction.
a force that acts on a resting object.