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WorksheetsUnit 2 Physical Science
Total questions: 49
Worksheet time: 1hrs 11mins
Which of the following is NOT a property of forces?
Forces can make objects start moving
Forces can make objects move faster
Forces do not affect motion
Forces can make ojects change shape.
Equation to solve for time:
Distance/ Speed
Speed/ Distance
Acceleration x Velocity
Distance x Velocity
What force slows objects down and keeps them from moving?
Acceleration
Gravity
Friction
Net Force
Which one of Newton's laws are displayed
2nd law
1st law
3rd law
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe
2nd law
1st law
3rd law
This is Newton's 3rd law
True
False
When there is a change in motion?
When forces are balanced
When the forces are unbalanced
Whe forces are equal
Never
kg/sec 2
Which of the following is an acceptable velocity measurement?
25 m/s North
25 m/s
25 m
25 m North
A runner runs 2 laps around a track with a circumference of 400 m. What is their total displacement?
800 m
0
400 m
400 m North
Which graph shows an object at rest?
A
B
C
D
A cardinal can fly 11 mi/hr south for migration
Velocity
Speed
Acceleration
A truck increases its speed from 25 mi/hr to 45 mi/hr
Velocity
Speed
Acceleration
A duck can fly 65 miles in 2 hours
Velocity
Speed
Acceleration
What units is Force measured in?
Kilograms
Joules
kg x m/s
Newtons
Resistance to change.
power
force
inertia
energy
What is NOT a way that an object can accelerate?
decreasing speed
change in direction
friction
increase in speed
What is weight?
the force of gravity on a person or object at the surface of a planet
the amount of matter in an object
anything that has mass and takes up space
force that two surfaces exert on each other when they rub against each other
What is mass?
the force of gravity on a person or object at the surface of a planet
the amount of matter in an object
anything that has mass and takes up space
force that two surfaces exert on each other when they rub against each other
Looking at the image. Decide if this is balanced or unbalanced.
Unbalanced
Balanced
Which type of friction is shown in the picture?
fluid
static
rolling
sliding
Which type of friction is shown in the picture?
fluid
static
rolling
sliding
Calculate the net force of the object in the image shown.
Calcula la fuerza neta del objeto en la imagen que se muestra.
Beth drops a feather and a marble from the same place at the same time. She notices that the feather falls to the ground much more slower than the marble. Explain Beth's observation:
Inertia causes the feather to become lighter as it falls to Earth.
Gravity pulls them both to Earth at the same speed and they both should fall at the same time.
Air resistance acts on the feather causing it to fall slower
The mass of the feather is not great enough to increase its speed.
Why do objects fall to the center of the Earth?
Gravity only exists on Earth so everything is pulled towards it
Earth's large mass, objects are pulled toward the center
The moon's forces push on objects making them attracted to Earth
The planet next to Earth pushes on Earth causing objects to stick to the outside.
Which of these statements is true concerning balanced forces acting on a car?
Balanced forces will cause the car to slow down and stop.
Balanced forces will cause no change in the car's motion
Balanced forces will cause the car to accelerate in the direction of the greater force
Balanced forces will cause the car to change direction.
For a given net force an object will accelerate less if it has a greater
Mass
Speed
Volume
None of the above
How many balls will be expelled to the right, when four balls are pulled and released to the left?
One ball will be expelled to the right.
Four balls will be expelled to the right.
Three balls will be expelled to the right.
All five will move to the right.
What is the equation for Acceleration?
A = Force / Mass
A = Mass/ Force
A = Distance/ Time
A = Force x Mass
What is the equation for Acceleration?
A = Vf- Vi / Time
A = Mass/ Force
A = Distance/ Time
A = Force x Mass
Which of the following is NOT the correct units
Force (Newtons)
Acceleration (meters/sec^2)
Weight (kg)
Momentum (kg x m/s)
The Law of Conservation of Momentum states:
The total momentum before a collision is equal to the total momentum after a collision.
The total momentum before a collision is greater than the total momentum after a collision.
The total momentum before a collision is less than the total momentum after a collision.
The total momentum before a collision is not related to the total momentum after a collision.
What is the SI unit for momentum?
g m/s
kg m/s
m/s
kg/s
Which of the following objects would have the most momentum?
A 10 kg ball rolling down the hallway at 2 m/s.
A 5 kg ball rolling down the hallway at 5 m/s.
A 100 kg ball at rest in the corner of the hallway.
A 10 kg ball rolling down the hallway at 1 m/s.
A squirrel has a weight of 4.9 N. What is his Mass if he is running on the Ground?
4.9 kg
9.8 N/kg
0.5 kg
5.0 kg
______ is explained as a push or pull motion
Force
Friction
Gravity
Weight
What are the units for Weight?
Kg
N
N/kg
Joules
The stationary background lets us know that an oject is moving
Background of motion
displacement view
reference frame
internal optics
An object moving at a constant velocity will continue moving at a constant velocity unless acted upon by an unbalanced force applies to this law
Newtons 1st law
Newtons 2nd law
Newtons 3rd law
A 1,000-kg truck barrels down a highway at 24 m/s2 with a force of 24,000 N.
Newtons 1st law
Newtons 2nd law
Newtons 3rd law
