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WorksheetsPhysics: Fall Midterm Review 25-26
Total questions: 80
Worksheet time: 50mins
Which step of the scientific method involves using your five senses to identify a problem?
Hypothesis
Observation
Experiment
Analysis
What is the purpose of an experiment in the scientific method?
To summarize patterns in nature
To prove or disprove a hypothesis
To create a scientific law
To replace observations
Which of the following best defines a scientific theory?
An untested idea
A hypothesis with no evidence
An explanation supported by a wide range of experimental evidence
A mathematical formula only
An observation is different from an inference because an observation is based on:
Prior knowledge
Interpretation
Direct use of senses or instruments
Guesswork
Why is a control group important in experiments?
It ensures random results.
It eliminates the need for variables.
It provides a baseline for comparison.
It proves the hypothesis true.
Which of the following lists orders the units from smallest to largest?
A. Millimeter, Centimeter, Meter, Kilometer
B. Centimeter, Millimeter, Meter, Kilometer
C. Millimeter, Meter, Centimeter, Kilometer
D. Centimeter, Meter, Millimeter, Kilometer
The Amazon River is 6,990,000 meters long. How many kilometers is that?
69.9 kilometers
699 kilometers
6,990 kilometers
69,900 kilometers
Which of the following is the purpose of the scientific method?
To prove theories are correct beyond any doubt
To conduct experiments that lead to new technologies
To systematically investigate questions & solve problems
To confirm existing beliefs and opinions
Expand 2.001x107 (standard form)
20000001
20010000000
2001000000
20010000
Write 23.65 in scientific notation.
A. 2.365×10^1
B. 2.365 x 10^2
C. 2.365 x 10^4
D. 23.65 x 10^1
The total ground covered along a certain path of travel is called
Speed
Displacement
Time
Distance
The shortest distance from an object's initial position to its final position is.
Speed
Displacement
Time
Distance
A dog walks the path shown below. If he starts at the star, follows the arrows, and ends at the X, what is the dog’s distance?
18 km North
14 km
18 km
6 km North
A train travels 3 km south, 4 km west, 11 km north, and lastly 9 km west. What is the train’s displacement?
15.3 km NW
13.5 km SE
27 km NW
13.5 km NW
What is the first step you should take if you accidentally break a piece of glassware?
Attempt to clean up the glass yourself without telling anyone.
Notify your teacher immediately and follow their instructions for cleaning up.
Leave the broken glass on the floor until the end of the lab session.
Use a broom and dustpan to sweep up the glass and dispose of it in a regular trash can.
What is the SI unit of velocity?
m/s²
second per meter
meter per second
meter•second
Which of the following best describes a vector quantity?
magnitude only
magnitude and direction
direction only
time
What is the definition of acceleration?
total distance covered over time
change in speed
the rate of change in displacement
the rate of change in velocity
A runner travels 15 km in 1.25 hours. What is the runner’s average speed?
18.75 km/h
10.5 km/h
12 km/h
15.25 km/h
A plane flies 2100 miles east in 4.2 hours. What is its average velocity?
400 mph west
500 mph east
650 mph west
2100 mph east
Which of the following statements is true about velocity and speed?
Velocity includes direction, speed does not.
Speed includes direction, velocity does not.
Velocity is always greater than speed.
Speed and velocity are always the same value.
A hiker moves 25 m north and then 40 m south. What is the total displacement?
65 m north
15 m south
25 m north
40 m south
A cyclist pedals at 4.5 km/h for 1.5 h. How far does she travel?
3.0 km
6.75 km
7.5 km
5.2 km
A toy car starts at rest and accelerates at 0.8 m/s² for 6 seconds. What is its final velocity?
3.0 m/s
4.8 m/s
6.8 m/s
5.0 m/s
What does it mean if an object has zero acceleration?
The object is not moving.
The object's velocity is changing.
The object is moving at a constant velocity.
The object is speeding up rapidly.
What does a negative acceleration mean for an object moving in the positive direction?
It is speeding up.
It is turning around.
It is moving at constant speed.
It is slowing down.
What does the slope of a velocity-time graph represent?
displacement
acceleration
average speed
time interval
An object traveling in the positive direction begins slowing down. What is true of its acceleration?
Acceleration is positive.
Velocity increases.
Acceleration is negative.
Displacement becomes zero.
Which of the following best defines displacement?
Total distance traveled
Rate of speed
Change in an object's position
How long something moves
The velocity of an object decreases uniformly. Which of the following best describes its motion?
Constant acceleration
Constant displacement
No acceleration
Instantaneous speed
A student drops a textbook off a ledge, and it falls freely. Which statement best describes the motion of the book as it falls?
It gains speed uniformly while falling.
It travels at a constant speed downward.
It loses speed as it falls.
It floats due to zero gravity.
A softball is tossed straight up and returns to the thrower's glove. When does it have zero velocity and maximum acceleration?
Just after it's thrown
Just before it's caught
At the top of its path
Midway on the way up
If a car’s acceleration is known and its starting velocity is 6.0 m/s, which of the following can be predicted?
Only the direction of the car's final motion
The car’s final velocity and displacement
Only the total time of travel
Only the speed of the car at a specific point
A falling object in a vacuum
falls at a constant speed
falls with increasing acceleration
has an acceleration of 9.81 m/s² downward
floats gently downward
Which of the following objects will accelerate equally in free fall near Earth’s surface (neglecting air resistance)?
An apple and a hammer
A beach ball and a feather
A marble and a sheet of paper
All of the above
A basketball is thrown downward at 3.0 m/s from a 25 m tall gym balcony. How fast is it moving when it hits the ground? (Assume g = 9.81 m/s²)
19.4 m/s
22.3 m/s
28.6 m/s
35.2 m/s
What term is used to describe the acceleration due to gravity?
Final velocity
Instantaneous displacement
Free-fall acceleration
Average acceleration
A train moves at 18 m/s for 5.0 s, then accelerates at 3.0 m/s² for 10.0 s. What is its final speed?
30 m/s
48 m/s
24 m/s
36 m/s
If a cart moves with a velocity of 4.0 m/s and accelerates at 1.5 m/s² for 6.0 s, what is the total displacement?
51.0 m
36.0 m
63.0 m
72.0 m
A phone falls from a shelf and hits the ground after 3.0 s. From what height did it fall?
22.0 m
29.4 m
44.1 m
88.2 m
A coin is dropped from the roof of a 90.0 m tall building. How long will it take to hit the ground?
3.0 s
4.3 s
5.0 s
6.7 s
A toy ball is dropped from a 10 m desk. How long is it in the air?
6.0 s
9.8 s
2.0 s
1.4 s
A chipmunk accidentally drops a pecan from rest. What is the vertical acceleration of the pecan as it falls?
0 m/s²
-9.8 m/s²
9.8 m/s²
Cannot be determined without more information
A T-shirt is launched at a basketball game with an initial velocity of 4 m/s. What will be the vertical velocity of the T-shirt at its maximum height?
0 m/s
-9.8 m/s
9.8 m/s
4 m/s
A Canadian goose accidentally drops a twig from rest, at a height of 10 meters. What is the horizontal acceleration of the twig as it falls?
0 m/s²
-9.8 m/s²
9.8 m/s²
Cannot be determined without more information
Suppose you drop a coin vertically down and flick another coin horizontally at the same time from the same height. Which will land first?
The coin that was dropped vertically
The coin that was launched horizontally
Both will land at the same time
Cannot be determined without knowing the mass
A student accidentally drops an apple (from rest) off a skyscraper at a height of 500 meters. Assume air resistance is negligible. How long will it take the apple to fall to the ground?
3.2 s
5.1 s
7.1 s
10.1 s
A girl takes a running leap from a diving board at vx = 1.3 m/s and hits the water 0.75 seconds later. How far (horizontally) from the diving board will the girl land?
0.38 m
0.75 m
0.98 m
1.0 m
What is the definition of inertia?
The speed at which an object is moving.
The amount of force required to stop an object.
The tendency of an object to resist changes in its motion.
The force of gravity acting on an object.
According to Newton's First Law of Motion, what will happen to an object at rest if no unbalanced force acts upon it?
It will start moving at a constant velocity.
It will remain at rest.
It will accelerate.
It will change direction.
What is the relationship between mass and inertia?
Mass and inertia are unrelated.
Mass is the opposite of inertia.
The more mass an object has, the more inertia it has.
The more mass an object has, the less inertia it has.
If an astronaut throws a wrench in space, what will happen to the wrench?
It will fall back to Earth.
It will eventually come to a stop.
It will continue moving at a constant velocity unless it encounters another object.
It will accelerate.
What is the definition of net force?
The force of gravity acting on an object.
The force required to move an object.
The overall force acting on an object.
The force that resists motion.
How is weight related to mass?
Weight is the force of gravity acting on an object's mass.
Weight and mass are the same thing.
Weight is the amount of matter in an object.
Weight is the tendency of an object to resist changes in its motion.
What is a free body diagram?
A diagram that shows the motion of an object.
A diagram that shows the energy of an object.
A diagram that shows all the forces acting on an object.
A diagram that shows the internal structure of an object.
If the forces acting on an object are balanced, what is the net force?
The sum of all the forces.
Zero.
The largest force.
The smallest force.
If an object has a net force of zero, what can you say about its motion?
It is not moving.
It is moving at a constant velocity.
It is accelerating.
It could be at rest or moving at a constant velocity.
According to Newton's Second Law of Motion, what is the relationship between mass and acceleration?
Mass is directly proportional to acceleration.
Mass is inversely proportional to acceleration.
Mass is unrelated to acceleration.
Mass is equal to acceleration.
If you apply the same force to two objects, one with a large mass and one with a small mass, which object will experience a greater acceleration?
The object with the smaller mass.
The object with the larger mass.
Both objects will experience the same acceleration.
It is impossible to determine without knowing the exact forces.
A 50 N force is applied to a 2 kg object. What is the resulting acceleration?
10 m/s²
27 m/s²
25 m/s²
100 m/s²
What is Newton's Third Law of Motion often stated as?
An object at rest stays at rest, and an object in motion stays in motion at the same speed and in the same direction unless acted upon by an unbalanced force.
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
For every action, there is an equal and opposite reaction.
The force of gravity is proportional to the product of the masses of two objects and inversely proportional to the square of the distance between them.
What does Newton's Third Law of Motion tell us about forces?
Forces always act in pairs.
Forces are always equal in magnitude.
Forces are always opposite in direction.
All of the above.
What is a force pair?
Two forces that are equal in magnitude and opposite in direction.
Two forces that act on the same object.
Two forces that cause an object to accelerate.
Two forces that cancel each other out.
A book is resting on a table. What force prevents the book from falling through the table?
The force of gravity.
The force of friction.
The normal force.
The applied force.
What is the definition of friction?
A force that resists motion.
A force that causes acceleration.
A force that acts between two surfaces in contact.
A force that is always present.
When a rocket launches, it expels hot gas out of its engines. Which of the following describes the force pair involved in this situation?
The rocket pushes on the gas, and the gas pushes on the rocket.
The rocket pushes on the Earth, and the Earth pushes on the rocket.
The rocket pulls on the gas, and the gas pulls on the rocket.
The rocket pulls on the Earth, and the Earth pulls on the rocket.
A swimmer pushes off the wall of a pool to start swimming. Which force causes the swimmer to accelerate?
The force of the swimmer's arms.
The force of the swimmer's legs.
The force of the wall on the swimmer.
The force of gravity.
Which of these is an example of work?
Holding a backpack still
Pushing a box across the floor
Standing still
Sitting in a chair
A 20-N box is lifted 2 meters. How much work is done?
20 J
40 J
10 J
4 J
A student pulls a wagon with 15 N at a 30° angle for 4 m. How much work is done?
52 J
60 J
20 J
15 J
A worker does 200 J of work to lift a crate 4 m. What force did they use?
25 N
50 N
75 N
100 N
A person does 120 J of work in 2 minutes. How much power is used?
1 W
2 W
1 J
1 W
Power is...
How fast work is done
How heavy something is
How far something moves
How big the force is
A crane lifts 50 N for 2 m in 4 seconds. Power = ?
25 W
50 W
100 W
200 W
A student pushes with 40 N and does 80 J of work. How long did it take if power = 20 W?
2 s
3 s
4 s
5 s
Gravity is...
A push that moves objects
A force that pulls objects toward each other
Only on Earth
Only for heavy things
If one object gets heavier, the gravity between two objects...
Gets stronger
Gets weaker
Stays the same
Disappears
Two small balls, 2 kg and 3 kg, are 1 m apart. Gravity = ? (Use G = 6.67×10⁻¹¹)
4×10⁻¹⁰ N
2×10⁻¹⁰ N
6×10⁻¹¹ N
1×10⁻⁹ N
If the distance between two objects doubles, the gravity becomes...
Stronger
Weaker
Same
Zero
Sequence the steps of the science method from start to finish. Put the first step at the top, and the last step at the bottom.
Experiment
Conclusion and Share Results
Hypothesis
Observation and Question
Analyze Data
