Test Questions
A child rides a wagon down a hill and onto
a flat paved surface. Eventually, the
wagon comes to a stop. What caused the
wagon to stop?
A. Gravity acting on the wagon.
B. Friction acting on the wagon.
C. The momentum of the wagon.
D. The mass of the child.
B. Friction acting on the wagon.
A car and a fire truck travel on a road in the
same direction at the same speed. Both vehicles
slow down with the same stopping force. Which
statement best explains why the fire truck needs
more distance and takes longer to stop?
A. The car has less mass.
B. The car has a smaller engine.
C. The fire truck is longer than the car.
D. The fire truck has larger wheels.
A. The car has less mass.
___________: When an object changes its speed and/or direction.
Acceleration
___________: A force pushing in the opposite direction of motion caused by the surface the object is on.
Friction
Dexter ran a total of 6 miles while playing fetch with Miss. Van Etten. He played fetch for two hours. Calculate the average speed she was moving.
3 miles per hour
When workers spread sand over icy bridges
and roads in the winter, how does this help
people drive more safely on the roads?
A. The sand increases friction between the
road and the tires of the car.
B. The sand increases the inertia of a car.
C. The sand increases the speed of a car.
D. The sand increases the momentum of a
car.
A. The sand increases friction between the
road and the tires of the car.
An object is moving at a constant speed. If a
balanced force is applied in the opposite direction
the object is moving, what will most likely
happen?
A. The object will speed up.
B. The object will change direction.
C. The object will continue moving at a
constant speed in the same direction.
D. The object will eventually stop moving.
D. The object will eventually stop moving.
___________: Pushes against objects while they are moving.
Air-Resistance
___________: The pull on objects caused by the mass of Earth.
Gravity
Sam ran 40 miles to her house. It took her two hours. Calculate the average speed she was moving.
20 miles per hour
Four different colored marbles, each with a
different mass, are moving at the same speed.
Which marbles would require the most force to
stop its motion?
Red = 10 Grams
Orange = 20 Grams
Blue =30 Grams
Green = 40 Grams
A. Red
B. Orange
C. Blue
D. Green
D. Green
Two people are pulling on the opposite ends
of a rope. If they are pulling on the rope with equal but opposite forces, what will happen to the rope?
A. It will stay between the two people.
B. It will move to the right.
C. It will move to the left.
D. It will fall to the ground.
A. It will stay between the two people.
___________: Is when the force on a given object is unequal. (not balanced)
Unbalanced Force
___________: A measurement of the amount of matter in an object's weight.
Mass
A car and a fire truck travel on a road in the
same direction at the same speed. Both vehicles
slow down with the same stopping force. Which
statement best explains why the fire truck needs
more distance and takes longer to stop?
A. The car has less mass.
B. The car has a smaller engine.
C. The fire truck is longer than the car.
D. The fire truck has larger wheels.
A. The car has less mass.
A piece of paper falls off a desk. What
forces are acting upon the paper?
A. mass & weight
B. mass & gravity
C. gravity & air resistance
D. speed & momentum
C. gravity & air resistance
A ball is thrown 20 meters into the air. Which
best describes the speed of the ball as it comes
back down?
A. The ball goes up at a constant speed, stops,
and then comes down at a constant speed.
B. The ball goes up at a constant speed, stops,
and increases speed as it comes down.
C. The ball goes slower as it goes up, stops,
and then increases speed as it comes
down.
D. The ball goes slower as it goes up, stops
and then comes down at a constant speed.
C. The ball goes slower as it goes up, stops,
and then increases speed as it comes
down.
___________: A change in position or location.
Motion
___________: Is the distance traveled in a given time and in a specific direction.
Velocity
What can cause a moving object to increase its speed in a forward direction? Select the best TWO answers.
A. A force pushing on the object from the opposite direction.
B. A force that continually acts on the object in the direction the object is moving.
C. An increase in the mass of the object.
D. A decrease in the mass of the object.
B. A force that continually acts on the object in the direction the object is moving.
D. A decrease in the mass of the object.
Jessica walked for 30 minutes. She
noticed that she traveled farther in the
first 15 minutes of her walk than in the
second 15 minutes. What can she
conclude about her walk?
A. She walked over many hills.
B. Her average speed was faster during
the first half of her walk.
C. She walked in two different directions.
D. She was walking at a constant speed.
B. Her average speed was faster during
the first half of her walk.
An engineer is designing a boat to travel
through the water with the least amount of
resistance. What would the engineer most
likely need to consider?
A. the length of the boat
B. the shape of the boat
C. the temperature of the water
D. the direction the boat is traveling
B. the shape of the boat
___________: A push or pull that causes an object to move, stop, get slower, or change direction.
___________: How fast an object is moving.
Speed
John begins driving at 6:00AM and finishes driving at 8:00AM. John has traveled 120 miles. Calculate the average speed?
60 miles per hour