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- 1. Multiple Choice
A force is _____.
A push
A pull
A lift
All of these
- 2. Multiple Choice
Force is a vector. Vectors have both _____ and direction.
velocity
displacement
magnitude
gravity
- 3. Multiple Choice
A diagram which labels the forces acting on an object along with their direction is called _____.
a force diagram
a free body diagram
- 4. Multiple Choice
The unit used to measure forces is called the Newton.
TRUE
FALSE
- 5. Multiple Choice
Force diagrams can be used to find _____.
the direction of forces only
the magnitude of forces only
the net force acting on an object
the acceleration of an object only
- 6. Multiple Choice
When an object sits upon a surface, which of the following forces is acting on it?
Normal force
Fn
Applied force
F app
Friction force
Ff
None of these
- 7. Multiple Choice
Forces are all around us. In the real world, who would use data about Net force and force diagrams?
Physicists around the world
Engineers or Architects
People involved in Transportation
All of these
None of these
- 8. Multiple Choice
Which of the following diagrams shows a free body diagram?
- 9. Multiple Choice
Which of the following forces acts against the motion of an object? (NOTE: there are two correct answers to this question.)
Air resistance (Drag)
Normal force
Imaginary Force
Friction force
Magnitude
- 10. Multiple Choice
In the diagram shown here, the net force is _____.
0 N
10 N, upward
10 N, to the left
10 N, to the right
- 11. Multiple Choice
The man in this picture is _____. He is famous for _____.
Albert Einstein; inventing gravity
Isaac Newton; inventing gravity
Isaac Newton; studying motion
Galileo; dropping objects and drawing them
- 12. Multiple Choice
Which of the following statements is FALSE?
Net forces cause changes in acceleration.
Changes in acceleration always involve objects that speed up.
A force can be measured in Newtons.
If you push harder on an object, then you will have a greater effect on its motion.
- 13. Multiple Choice
How many laws of motion did Isaac Newton write?
ONE
TWO
THREE
FOUR
- 14. Multiple Choice
Which quantity remains the same no matter where you are?
Weight force
Mass
Gravity
None of these
- 15. Multiple Choice
What is the primary effect of unbalanced forces acting on an object?
The object moves in a circular path
The object's velocity remains constant
The object accelerates
The object levitates
- 16. Multiple Choice
When Thomas pushes a skateboard, it pushes back with an equal force. What does this illustrate?
For every action, there is an equal and opposite reaction.
The acceleration of a skateboard is directly proportional to the net force Thomas applies.
A skateboard at rest stays at rest, and a skateboard in motion stays in motion unless acted upon by an external force.
The force of gravity acts between all masses in the universe.
- 17. Multiple Choice
Thomas is pushing a shopping cart with a certain mass at an acceleration. According to Newton's second law of motion, what is the equation that relates the force Thomas applies, the mass of the cart, and the acceleration of the cart?
- 18. Multiple Choice
Thomas is conducting an experiment in his physics class to measure the force required to move a 5kg block across a table. Which unit should he use to report his findings in accordance with the International System of Units (SI)?
Kilogram (kg)
Newton (N)
Magnitude (m)
- 19. Multiple Choice
Thomas always puts his seatbelt on when riding in a car. The reason he does this is because _____.
It is the law and he does not want to break the law.
His father told him he had to and he does not want to get in trouble.
He knows about Newton's first law of motion -- object in motion stays in motion and wants to be safe.
All of these
- 20. Multiple Choice
Which has more mass: 1000 kg of bricks or 1000 kg or feathers?
bricks
feathers
both the same
- 21. Multiple Choice
Which would experience more weight force on the earth: a 10 kg cat or a 75 kg man?
cat
man
both the same because gravity is the same
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