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WorksheetsSTAAR Cat 2
Total questions: 34
Worksheet time: 25mins
The 3 vehicles are all traveling at a speed of 50 m/s, but only the pick up truck has a changing velocity. Why?
Because the truck can accelerate faster than the other 2 vehicles.
Because the truck is traveling in the opposite direction from the other 2.
Because the truck is traveling on a curve of the road
Because the truck needs a large amount of force to move.
7.7A
A student sitting in a chair holding both boxes.
A student holding the large box 1 m above the floor.
A student standing and holding the small box.
A student lifting the small box .5 m from the floor to the table.
Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply the brakes at the same time to stop?
The car with the smaller mass will require less force to stop than the car with the larger mass.
The car with the larger mass will maintain its velocity while traveling down the hill.
The car with the smaller mass will take longer to stop than the car the car with the larger mass.
The car with the larger will have less inertia than the car with the smaller mass.
6.8A In the classroom demonstration shown, a rubber ball is dropped from Position 1. The ball bounces as shown. At which position does the ball have the greatest kinetic energy?
Position 1
Position 2
Position 3
Position 4
What is speed?
how far you go
how much distance is covered over a period of time
how fast you accelerate
the change in the location of a object
What is velocity?
the quickness of an object
the location of an object
acceleration
speed in a specific direction
If you go 10 meters in 5 sec. how fast are you going
5mps
2 mps
6mps
8mps
Changes in our speed, direction or both are called _________.
gravity
changes
acceleration
deceleration
The picture of the position vs. time graph shows an object that is...
accelerating/speeding up
moving at a constant speed
not moving
accelerating/slowing down.
4 students raced toy cars on a track. The mass and the acceleration of each car is shown in the table. Which car had the greatest force applied?
1
2
3
4
Which answer correctly describes the motion shown in the graph?
The car slows down for 2 minutes stops for a minute cantinues at a constant speed.
The car travels at a constant speed for 2 min., then increases its speed and then travels at a constant speed.
The car is stopped for 2 minutes, moves away from the start for a minute, then stops again.
According to the data table, how much force is acting on the cart when the students measure an acceleration of 2.6 m/s2?
13
7
8
12
Sometimes tectonic plates do not easily slide past each other and become stuck. Forces build up, and when plates finally move, tension is released. The sudden movement of the plates is caused by -
the mass of the plates
the weight of the plates
unbalanced forces
gravitational force
How will the boat be affected if it enters a part of the river where the current is moving south at 2 m/s?
The boat will slow down.
The boat will move faster.
The boat will stop.
The boat will move to the east.
6.9C When a lion eats a zebra and then uses that energy from the zebra to run, the lion's body converts -
chemical into mechanical energy
electrical into chemical energy
chemical into light energy
mechanical into chemical energy
When a space shuttle was launched, the astronauts experienced an acceleration of 10 m/s2. If one of the astronauts had a mass of 50 kg, what net force in newtons did the astronaut experience?
5000 N
2 N
50 N
.2 N
If these boys are pulling with the same amount of force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
Both will fall down.
Why is person B having a hard time moving down the hill?
Person B has more friction than person A.
Person B has the same friction as person A.
Person B is out of shape.
Person B has less friction has person A.
What is motion?
It's like the ocean
Any change in an animal or person's position.
Motion is like acting
Any change in an object or person's position.
The measure of the pull of gravity on an object is ___________________.
motion
weight
speed
friction
You and your friend, are playing tug of war. Your friend pulls with a force of 55 N, to the right. You pull with a force of 65 N, to the left. What is the net force on the rope?
10 n, to the left
20 N
10 N, to the left
10 N, to the right
6.11B Two factors affecting the magnitude of the force of gravity between 2 objects are...
Mass and Distance
Mass and Matter
Distance and Weight
Weight and Mass
6.6B What is the formula for density?
density = mass x volume
density = mass / volume
density = mass + volume
density = mass - volume
6.6B The amount of space an object takes up is its'
mass
volume
length
density
A 20 kg bike accelerates at 10 m/s2. what was the force
25
200 N
20 N
10 N
Which of Newtons laws explains why football teams have big, large, fast athletes.
Law of Inertia & the Law of Force
Law of Force
Law of Inertia
Law of Action-Reaction
Which law explains why when you put a book on a table the table pushes on the book
3rd law
4th law
1st law
2nd law
A person is pushed forward into their seatbelt when a car stops
1st
2nd
2 and 3
3rd
An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described by
Newton’s first law of motion for objects at rest.
Newton’s first law of motion for objects in motion.
Newton’s second law of motion.
Newton’s third law of motion.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
the cannonball
the baseball
The balls land at the same time.
the ball with the larger volume
A crumpled piece of paper hits the ground before a flat sheet of paper because
the acceleration of gravity is greater on the crumpled paper.
there is more air resistance against the flat paper.
the crumpled paper is more massive
the crumpled paper is less massive.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)
The one with a mass of .78 kg will have the greatest acceleration.
The one with a mass of .52 kg will have the greatest acceleration.
They will both accelerate at the same rate.
6.6B This is the object from number 8 which had a density of 10 g/cm3. It was split in half. What is the density of each half.
5 g/cm3
12 g/cm3
More information is needed!
10 g/cm3
