When you trip, your foot stops, but your body continues to move forward. Which statement best explains why this happens?(1 point) Inertia pushes your body forward after your foot stops.

An unbalanced force pushes your body forward.

An unbalanced force stops your foot but does not act on the rest of your body.

The unbalanced force that stops your foot pulls your body forward.

A bowler throws a ball down the lane toward the pins. The ball reaches the pins and slowly moves through them, knocking down the center pins but leaving the end pins standing. The bowler wants the ball to reach all the pins. Which changes should the bowler make so that the ball has a greater acceleration?(1 point)

The bowler should choose a ball with more mass or throw the ball with more force.

The bowler should choose a ball with less mass or throw the ball with more force.

The bowler should choose a ball with more mass or throw the ball with less force.

The bowler should choose a ball with less mass or throw the ball with less force.
Imagine a scenario in which an animal's force is pushing itself forward 5 N, friction is pushing it 4 N backward, gravity is pushing the animal 10 N down, and the animal is pushing itself 10 N up. Describe the movement of the animal.(1 point)

It only moves forward because there is a net force forward.

It moves 29 N forward because that's the net force.

It moves forward and upward because those are the greatest net forces.

It moves 10 N down and 10 N up as those are the greatest forces acting on the animal.
Two rockets with the same mass are accelerated. Rocket A accelerates twice as quickly as rocket B. Which statement is correct?(1 point)

The motor in rocket A is twice as powerful as the motor in rocket B.

The motor in rocket A is four times as powerful as the motor in rocket B.

The motor in rocket A is half as powerful as the motor in rocket B.

The motor in rocket A is half as powerful as the motor in rocket B.
A model rocket has a mass of 0.2 kg, with a motor that can provide a force of 100 N. A second model rocket is being built with the same motor, but it is being designed to accelerate half as much as the first rocket. What kind of change can be made in the design to achieve this objective? (1 point)

The mass of the second rocket should be 0.01 kg.

The mass of the second rocket should be 0.1 kg.

The mass of the second rocket should be 0.2 kg.

The mass of the second rocket should be 0.4 kg.
Five motorboats are being tested to see which reaches the highest velocity in the same amount of time. After graphing the acceleration versus force for each motorboat, the graph is a sloped line with a y-intercept of zero. Which statement is correct about these motorboats?(1 point)

All five motorboats have the same final velocity, which can be calculated from the graph.

All five motorboats have the same mass, which can be calculated from the graph.

All five motorboats have the same mass, which cannot be calculated from the graph.

All five motorboats have the same final velocity, which cannot be calculated from the graph.
In which situation does the reactive force between two colliding objects cause a physical change?(1 point)

the exhaust from a rocket thrusting the rocket away from the ground

a baseball player swinging a bat and hitting a baseball, causing the bat to shatter

a swing hitting another swing, causing the second swing to move away

A sledgehammer hits a wall. How do the hammer and the wall act on each other?(1 point)

The hammer exerts a stronger force than the wall but in the opposite direction.

The hammer and the wall exert forces on each other that are equal in magnitude and in the same direction.

The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.

The hammer exerts a stronger force than the wall but in the same direction.