WorksheetsGCA PhySci IA1 Review 2020
Total questions: 29
Worksheet time: 1hrs 27mins
Which ticker-tape diagram best shows an object moving fast, at a constant speed?
1
2
3
4
Two students are in a baseball game. The first student hits a ball very hard and it has a greater acceleration than the second student who bunts the ball lightly. How does Newton's 2nd law explain this?
Net force and acceleration are inversely related.
Net force and acceleration are directly related.
Mass and acceleration are directly related.
Mass does not affect the net force.
Caleb applies a force of 200 N to move his truck 50 m to the nearest gas station. How much work did Caleb do?
4 J
0.25 J
250 J
10,000 J
The Lorax climbs up onto the same Truffula tree stump 4 times, all at different speeds. Which statement about his energy is true?
The faster he climbed the more energy he used up.
The slower he climbed the more energy he used up.
He used the same amount of energy every time. Work is only based on force and distance.
In which situation is Horton doing Physics Work?
picking up the egg
sitting on the egg
carrying the egg
petting the egg
Which is a way to accelerate?
speed up
slow down
change directions
All of these are ways to accelerate!
On a Velocity Time graph, a line showing zero acceleration (constant velocity) will be
straight and directed downhill line (A)
straight and directed uphill (lines B and D)
horizontal (line C)
vertical (not shown in the picture)
If you ignore air resistance, all objects fall
at the same rate, 10 m/s2.
at different rates depending on their mass.
at different rates depending on their volume.
at the same rate, 25 m/s2.
A straight uphill line on a distance time graph means
the object is not moving.
the object has a constant velocity.
the object is accelerating.
the object is moving backwards.
As you run laps, your average speed decreases each time you go around the track. Because you are slower, each lap takes more time to complete than the previous one.
Your speed and time are ____ related.
directly
inversely
not
Airplane #1 takes off from ATL and flies to NYC. Airplane #2 takes off from NYC and flies to ATL. Both travel 860 miles. Which statement is true?
The airplanes have the same distance and displacement.
The airplanes have the same distance but different displacement because they have different magnitudes.
The airplanes have the same distance but different displacements because they have different directions.
the airplanes have different distances and displacements because they have different magnitudes and directions.
Check all that are true about the position time graph.
The object is accelerating.
The object is speeding up.
The object is moving forward.
The object is at rest.
The Hummer is driving along at 2 m/s. Suddenly, the driver floors it for 5 seconds until the Hummer reaches a speed of 12 m/s. At what rate did the Hummer accelerate?
2.8 m/s
2 m/s
2 m/s2
2.8 m/s2
The Hummer has a mass of 2500 kg. How much gravitational force does the earth exert on the Hummer?
2500 kg
25,000 N
2500 N
250 lbs
The Hummer has a mass of 2500 kg. The engine and friction combine to produce a net force of 500 N. At what rate will the Hummer accelerate?
0.2 m/s2
3000 N
5 m/s2
1,250,000 m/s2
Which has a larger gravitational force?
The pepper ate lunch before dancing. What energy transformation has occurred?
mechanical to thermal
thermal to mechanical
mechanical to chemical
chemical to mechanical
What stayed the same when the astronauts went to the moon?
the mass of the astronauts
the acceleration due to gravity
the weight of the astronauts
the gravitational force of the astronauts
Check the true statements about Newton's second law, F=ma.
More net force mean more acceleration, they are directly related.
More net force mean less acceleration, they are inversely related.
More mass mean more acceleration, they are directly related.
More mass mean less acceleration, they are inversely related.
Check the true statements Newton's third law.
The boat pushes the water down and the water holds the boat up.
The oar pushes the water back and the water pushes the oar forward.
The water slows down the boat.
The oar pushing the water back causes the boat to accelerate.
You double the distance between 2 objects keeping their masses the same. What happens to the force between them?
The force is smaller.
The force is larger.
The force stays the same.
One object's mass is doubled. How many times greater will the gravitational force between them be?
4
2
The force will be smaller, not bigger.
The force will be the same.
Two objects are both doubled in mass. How many times larger will the force become?
2
4
The force will decrease.
The force will stay the same.
Kronk pulls the lever with 30N. the lever exerts 150N on the door to open it. What is the Mechanical Advantage of the lever?
5
1/5
180 N
4500 N
The ramp height is 25 feet. The length of the ramp is 75 feet. What is the mechanical advantage of the ramp?
75
3
1/3
25
Which are correctly matched?
mass = amount of matter
inertia = speed
weight = gravitational force
weight = amount of matter
inertia = mass
What equation is best to use to calculate gravitational force?
v = d/t
F = ma
w = mg
W = Fd
"A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force." is the dictionary.com definition for:
gravitational force
acceleration
mass
inertia
