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20 questions
As mass of two objects increases, gravity...
Decreases
Increases
Stays the same
Select which answers are examples of contact forces (select more than one)
magnetism
applied force
friction
gravity
What would be the acceleration of a projectile with a 30 kg mass being launched by piston force of 400 Newtons? (Acceleration = Force/Mass)
13.33
12,000 m/s2
12,000 meters
13.33 m/s2
What forces are acting on a bowling ball that is rolling down the lane?
gravity and friction
applied force, normal force, gravity, and friction
gravity
normal force and gravity
True or False: If an astronaut is on the moon, her mass stays the same.
True
False
What is the scientific unit for acceleration?
meters per second
Newtons
meters per second squared
meters
As distance between two objects increases, gravity...
increases
decreases
stays the same
What is the scientific unit for force?
meters per second
meters per second squared
Newton
meters
A rocket launching into space is a good example of which of Newton's Laws?
Law of Inertia
Law of Acceleration
Law of Action-Reaction
More force is required to push a full grocery cart through the store rather than an empty cart. Which of Newton's Laws explains this?
Law of Inertia
Law of Acceleration
Law of Action-Reaction
On a distance-time graph, which variable belongs on the x-axis?
Speed
Distance
Acceleration
Time
Calculate net force using the free body diagram.
400 N
2000 N
400 N down
400 N up
An object in motion stays in motion, and an object at rest stays at rest unless acted on by an external force
Law of Inertia
Law of Acceleration
Law of Action-Reaction
True or False: The motion of the object in the diagram is changing.
True
False
As mass of two objects decreases, gravity..
increases
decreases
stays the same
Which of the following is the best example of Newton's Law of Inertia (Law 1)?
A car hitting a wall versus a plane hitting a wall
A bird pushing it's wings down and the air pushing back up on the bird.
A boy riding on a bike and flying over the handlebars when he hits a rock
A person sitting in a chair
A push or a pull on an object:
gravity
non-contact force
elastic force
force
A contact force that resists the sliding motion between two objects that are touching.
friction
normal force
non-contact force
gravity
This diagram represents which of Newton's Laws?
Law of Inertia
Law of Acceleration
Law of Action-Reaction
On a distance-time graph, which variable belongs on the y-axis?
Distance
Acceleration
Speed
Time
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