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- 1. Multiple Choice
When the first American astronauts were planning to walk on the moon, they knew that the gravity on the moon is less than the gravity on Earth. With this information what did the astronauts expect to be the MOST different on the Moon.
their mass
their weight
their height
their volume
- 2. Multiple Choice
A brick is resting on a level smooth surface. When a student applies a horizontal force of 5 N to the brick, the force of friction on the brick is also 5 N. Which statement BEST describes the effect of these two forces on the brick?
The net force on the brick is 0 N, and the brick begins to move.
The net force on the brick is 0 N, and the brick remains at rest.
The net force on the brick is 10 N, and the brick begins to move.
The net force on the brick is 0 N, and the brick remains at rest.
- 3. Multiple Choice
One person pulls on a rope with a force of 400 N to the left. Another person pulls on the rope opposite end with a force of 600 N to the right. What is the unbalanced net force?
200 N to the right
400 N to the right
600 N to the right
1000 N to the right
- 4. Multiple Choice
What is the Most reasonable explanation for why a toy car rolls farther on a wood floor than on thick carpet?
The car weighs more on the carpet.
The car weighs more on the floor.
The car has more resistance.
The car weighs less on the wood floor.
- 5. Multiple Choice
In a lab investigation, a student notes that two metal blocks have the same mass. Based on this observation, if the two blocks were put on opposite sides of a balance, they would BEST represent
balanced forces
unbalanced forces
equal and opposite reactions
objects in motion
- 6. Multiple Choice
When two unequal forces act in opposite directions on a moving object, the object will
absorb the forces
come to an immediate stop
move in the direction of the larger force
change direction
- 7. Multiple Choice
A ball rolls across the floor and slows down to a stop. Which force caused the ball to slow down.
friction
gravity
inertia
magnetic
- 8. Multiple Choice
A 20 N object is placed on a surface and starts to slide. What is the MOST likely reason the object begins to move.
Gravity exerts a balanced force on the object
An unbalanced force causes acceleration
Friction is applied to the object
The force acting on the object is in equilibrium
- 9. Multiple Choice
The diagram above shows
friction
gravity
balanced forces
unbalanced forces
- 10. Multiple Choice
A box is being pushed to the right with a force of 300 newtons, and to the left with a force of 400 newtons. What is the net force on the box.
300 newtons
400 newtons
700 newtons
100 newtons
- 11. Multiple Choice
Which statement BEST compares a parked car to a car moving along a straight line at a constant speed.
There are no forces acting on either car
Only the moving car is being subjected to forces
Both cars are being subjected to balanced forces
Only the parked car is subjected to balanced forces
- 12. Multiple Choice
Newton's first law of motion states:
An object in motion will remain in motion and an object at rest will remain at rest unless acted upon by an outside force.
Acceleration is produced when a force acts on an outside mass.
The greater the mass of the object, the greater the force needed to accelerate
For every action, there is an equal and opposite reaction
- 13. Multiple Choice
Newton's second law of motion states:
An object in motion will remain in motion and an object at rest will remain at rest unless acted upon by an outside force.
Acceleration is produced when gravity acts upon it.
The greater the mass of the object, the greater the force needed to accelerate
For every action, there is an equal and opposite reaction
- 14. Multiple Choice
Newton's third law of motion states:
An object in motion will remain in motion and an object at rest will remain at rest unless acted upon by an outside force.
Acceleration is produced when gravity acts upon it.
The greater the mass of the object, the greater the force needed to accelerate
For every action, there is an equal and opposite reaction
- 15. Multiple Choice
A student runs a distance of 2 meters in 15 seconds. What is his speed?
13 m/s
.133 m/s
133 m/s
13.30 m/s
- 16. Multiple Choice
Lauren walks 100 meters in 30 seconds. What is her speed?
3.33 m/s
333 m/s
.333 m/s
33.33 m/s
- 17. Multiple Choice
Patrick traveled at a speed of 18 km/h for two hours. What was the distance traveled?
18 km
9 km
36 km
20 km
- 18. Multiple Choice
John ran a 100 meter race in 10.2 seconds. What was John's speed?
98 km
.98 m/s
980 m/s
9.8 m/s
- 19. Multiple Choice
An object with a mass of 2.0 kg accelerates 2.0 m/s2 when an unknown force is applied to it. What is the amount of the force?
40 N
4.0 N
.40 N
400 N
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