Question

An object will move if the forces acting on it are

negative
unbalanced
balanced
positive
8. An astronaut drops a hammer and an egg while standing on the surface of the Moon.
Which one will hit the surface first?
the egg
the hammer
both will land at the same time
neither, both will float off into space
9. What is the product of an object's mass and its veiocity?
a. kinetic energy
b. momentum
c. impulse
d. inertia

Answer 1

Answer to question 7:

An object will change its state of motion, if the forces acting upon it are unbalanced. These forces can also change the object's speed and direction, if the object is already moving.

Answer to question 8:

Both the hammer and the egg will land at the surface of the moon at the exact same time. This happens because there is no air resistance on the moon, like here on Earth.

Answer to question 9:

The product of an objects mass and its velocity is the momentum. The quantity of substance being transported as well as its rate of motion both influence the amount of motion, or momentum. As you run, stroll, etc., you move with momentum. If the car is moving down the road at the same pace as a bicycle, it will have more momentum.

Answer 2

Answer:

1. c
2. c
3. b

Step-by-step explanation:

momentum=mass * velocity