SCIENCE EXAM AND MATH QUESTIONS WITH ACCURATE
ANSWERS
The force that pulls all objects toward one another Accurate Answer -
What is gravity?
The friction between an object and air Accurate Answer - Which of
these is considered a contact force?
50 N upward Accurate Answer - A box has two forces acting on it. One
force is 100 N upward. Another force is 50 N downward. What is the net force
on the box?
Gravitational force Accurate Answer - Melanie watched the path a
baseball followed after a pitcher threw it. She noticed that the ball traveled
horizontally away from the pitcher as well as downward toward the ground.
What force caused the ball to accelerate in the downward direction when it
was thrown?
Objects do not have to touch each other to experience a force Accurate
Answer - Why are some forces considered to be noncontact forces?
Friction is produced when objects slide past one another Accurate
Answer - Why is the friction force considered to be a contact force?
Magnets do not have to touch each other to experience a force
Accurate Answer - Why is the magnetic force considered to be a noncontact
force?
The speed of the bird would be 17 meters per second Accurate Answer
- A bird flies at 12.5 meters per second. The wind speed is 4.5 meters per
second. What is the speed of the bird when it flies with the wind?
The speed of the bird would be 8 meters per second. Accurate Answer
- What is the speed of the bird when it flies against the wind?
Gravity, friction, floor, and Merck are acting on the box Accurate
Answer - Marek is trying to push a box of sports equipment across the floor.
, The arrow not he box is a vector showing the force Marek exerts. Describe all
the forces acting on the box.
Merek's force needs to be greater than the force of the friction
Accurate Answer - Explain what needs to happen for the box to start moving.
You would add if they go in the same direction. You would subtract if they go
in the opposite direction. Accurate Answer - Explain how to calculate
the net force in any direction on the box
It is going to stay in the same place because they have the same force acting on
it. Accurate Answer - Determine the net force upward and downward
It is going right because 100N's is greater than 50N's Accurate Answer
- Determine the net force to the right or left
The box will move to the right Accurate Answer - Predict how the box
will move
The 1 kg ball accelerates twice as much as the 2 kg ball Accurate
Answer - Jessica is comparing two balls. One ball has a mass of 1 kg, and the
other has a mass of 2 kg. She pushes each with a force of 100N. How do the
accelerations of the two balls compare?
The boat moves away from the dock Accurate Answer - A fisherman
steps off a boat, which is in the water, onto a dock. What happens?
The forces exerted when they collide are equal and opposing Accurate
Answer - When 2 objects having different masses collide, they move away
from each other at different speeds. Which is true of the forces exerted at the
moment of impact?
1m/s Accurate Answer - An airplane is traveling at a speed of 200m/s
relative to the Earth. A person walks toward the front of the plane at a speed
of 1 m/s How fast is the person traveling in reference to the other people on
the airplane?
Only b will accelerate Accurate Answer - Two equal forces act in
opposite directions on object A. Two unequal forces act in opposite directions
ANSWERS
The force that pulls all objects toward one another Accurate Answer -
What is gravity?
The friction between an object and air Accurate Answer - Which of
these is considered a contact force?
50 N upward Accurate Answer - A box has two forces acting on it. One
force is 100 N upward. Another force is 50 N downward. What is the net force
on the box?
Gravitational force Accurate Answer - Melanie watched the path a
baseball followed after a pitcher threw it. She noticed that the ball traveled
horizontally away from the pitcher as well as downward toward the ground.
What force caused the ball to accelerate in the downward direction when it
was thrown?
Objects do not have to touch each other to experience a force Accurate
Answer - Why are some forces considered to be noncontact forces?
Friction is produced when objects slide past one another Accurate
Answer - Why is the friction force considered to be a contact force?
Magnets do not have to touch each other to experience a force
Accurate Answer - Why is the magnetic force considered to be a noncontact
force?
The speed of the bird would be 17 meters per second Accurate Answer
- A bird flies at 12.5 meters per second. The wind speed is 4.5 meters per
second. What is the speed of the bird when it flies with the wind?
The speed of the bird would be 8 meters per second. Accurate Answer
- What is the speed of the bird when it flies against the wind?
Gravity, friction, floor, and Merck are acting on the box Accurate
Answer - Marek is trying to push a box of sports equipment across the floor.
, The arrow not he box is a vector showing the force Marek exerts. Describe all
the forces acting on the box.
Merek's force needs to be greater than the force of the friction
Accurate Answer - Explain what needs to happen for the box to start moving.
You would add if they go in the same direction. You would subtract if they go
in the opposite direction. Accurate Answer - Explain how to calculate
the net force in any direction on the box
It is going to stay in the same place because they have the same force acting on
it. Accurate Answer - Determine the net force upward and downward
It is going right because 100N's is greater than 50N's Accurate Answer
- Determine the net force to the right or left
The box will move to the right Accurate Answer - Predict how the box
will move
The 1 kg ball accelerates twice as much as the 2 kg ball Accurate
Answer - Jessica is comparing two balls. One ball has a mass of 1 kg, and the
other has a mass of 2 kg. She pushes each with a force of 100N. How do the
accelerations of the two balls compare?
The boat moves away from the dock Accurate Answer - A fisherman
steps off a boat, which is in the water, onto a dock. What happens?
The forces exerted when they collide are equal and opposing Accurate
Answer - When 2 objects having different masses collide, they move away
from each other at different speeds. Which is true of the forces exerted at the
moment of impact?
1m/s Accurate Answer - An airplane is traveling at a speed of 200m/s
relative to the Earth. A person walks toward the front of the plane at a speed
of 1 m/s How fast is the person traveling in reference to the other people on
the airplane?
Only b will accelerate Accurate Answer - Two equal forces act in
opposite directions on object A. Two unequal forces act in opposite directions
