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WorksheetsSPS8 - Test
Total questions: 50
Worksheet time: 4hrs 10mins
How would the gravitational force between Earth and the Sun Change if Earth’s mass were doubled?
The gravitational force would increase.
The gravitational force would be removed.
The gravitational force would decrease.
The gravitational force would stay the same.
Two equal forces act at the same time on the same stationary object, but in opposite directions.
Which statement describes the object's resulting motion?
The object will accelerate.
The object will remain stationary.
The object will change direction.
The object will move at a constant speed.
A student placed a stuffed animal on the dashboard of a car. When the car accelerated quickly, the stuffed animal flew back onto the seat.
Which principle best describes the motion of the stuffed animal as the car accelerated?
Gravity
Momentum
Inertia
Speed
Jeff was riding in a car. Which change would demonstrate the greatest effect of inertia?
The car makes a sudden stop.
The car changes into another lane.
The car slows down gradually.
The car runs out of gas and rolls to a stop.
Which of these sets of objects will have the greatest gravitational attraction between them?
Two 1 kg objects 1 m apart.
Two 1,000 kg objects 1 m apart.
Two 1 kg objects 1,000 m apart.
Two 1,000 kg objects 1,000 m apart.
A cart is being pushed over a smooth surface with a constant force. After 5 seconds, the cart starts moving over a rough surface. How will the cart be affected once the surface changes?
The cart’s inertia will increase.
The cart’s friction will decrease.
The cart’s velocity will increase.
The cart’s acceleration will decrease.
The space shuttle uses booster rockets for its launch, but does not need them for the rest of its journey.
This is because the booster rockets are used for what?
To direct the shuttle on to its correct path.
To allow the shuttle to overcome the pull of gravity.
To reduce the amount of fuel needed to launch.
To protect the shuttle from damage during the launch.
Which is true about the relationship between an object’s mass and its weight?
The object’s mass is caused by the weight of gravity pushing the object downward.
Weight is gravity’s force on the object, which is determined by the mass of the object.
An object’s weight and its mass are the same, but they are measured differently.
An object’s weight and its mass are independent of each other and have no relationship.
As an astronaut travels from Earth to a space station orbiting Earth, what happens to her mass and her weight?
Her mass decreases, but weight remains the same.
Her mass remains the same, but her weight decreases.
Her mass increases and her weight decreases.
Her mass decreases and her weight also decreases.
Which is a result of the effect of gravity?
Rocket engines can force objects into space.
Released objects always fall towards Earth’s surface.
Air friction causes falling objects to slow down.
Airplanes are able to fly without falling to the ground.
Which two variables affect the gravitational force between objects.
Weight and Mass
Distance and Mass
Volume and Weight
Rotation and Distance
What must occur to a shopping cart at rest in order to make it roll forward?
A force must be provided to overcome gravity.
An unbalanced force pushes or pulls the cart forward.
Balanced forces must be acting upon the cart.
The unbalanced force must be smaller than friction.
Gravity on the moon is about 1/6th the gravity felt on the Earth. Which of the following explains this fact?
The moon is so far away from the Earth.
The Earth has a molten core and the moon does not.
The moon is much less massive than the Earth.
The moon is much further from the Sun than Earth.
Which of these would be the best example of an unbalanced force?
A dog runs at a constant velocity.
A snowball picks up speed as it rolls downhill.
You stand very still during the National Anthem.
Your coffee cup does not move from your desk.
How does an object’s mass affect its inertia?
Increasing an object's mass decreases its inertia.
There will be no effect on its inertia.
Increasing an object's mass increases its inertia.
Decreasing an object’s mass increases its inertia.
The force that slows down and eventually stops a ball you rolled across the pavement is called what?
Kinetic Force
Slow Force
Frictional Force
Potential Force
The image shows two opposite forces acting on a rope.
What can we say is true about the effect of the forces on the rope?
It cannot be determined without knowing the mass and weight of each individual applying force.
The net force is 225 N and there is no motion because the forces are balanced.
The net force is 75 N and there is motion to the left because that is the direction of the net force.
The net force is 75 N and there is motion to the right because that is the direction of the net force.
Two forces are acting on a wheel barrow.
One force is pushing to the right and an equal force is pushing to the left.
What can you say about the wheel barrow’s movement?
It is slowing down.
It is moving faster and faster.
It is not accelerating.
Its speed is changing at a constant rate.
A car rolls down a ramp. What outside force is acting on the car that causes movement down the ramp?
Speed
Gravity
Terminal Velocity
Friction
Mars is a much smaller planet than Earth, because of this the force of gravity on Mars is only 0.38 times the gravity on Earth. (Earth's Gravity is about 10)
Mars Gravity = 10*0.38, Mars Gravity = 3.8 m/s2.
The mass of an object on Earth is 71 kg.
What is the mass of weight of that object on Mars?
Mass: 71 kg
Weight 710 N
Mass: 27 kg
Weight 270 N
Mass: 71 kg
Weight 270 N
Mass: 27 kg
Weight 103 N
Which of these would not be a useful form of friction?
Brakes on a car.
Oil in the engine of a car preventing damage.
Rubbing sticks together to start a fire.
Machine parts being damaged from constant use.
Which observation best demonstrates Newton’s 1st Law of Motion?
An astronaut weighs more on Earth than he does on the moon, because his mass does not change.
A baseball thrown by a professional player has greater acceleration than a baseball thrown by a child.
A book placed beside you on the back seat of a car slides to the floor as the car stops suddenly.
A stone thrown at a trashcan cannot knock it over, but a stone with more mass can knock it over.
Newton’s 3rd Law states that forces occur as equal and opposite pairs, for every action force there is an equal and opposite reaction force.
How does this book represent Newton’s 3rd Law?
The weight of the book pushes upward (action force) and the table pushes down providing the reaction force.
Gravity pulls the table down (action force) and pushes the book up providing the reaction force.
The weight of the book pushes downward (action force) and the table pushes up (reaction force).
The book would not sit on the table because there is not enough friction for Newton’s 3rd Law.
The length between two points.
Distance
Displacement
Velocity
Acceleration
The rate of change of velocity.
Distance
Displacement
Velocity
Acceleration
Direction and length from the starting point.
Distance
Displacement
Velocity
Acceleration
Speed in a particular direction.
Distance
Displacement
Velocity
Acceleration
How fast an object travels; distance per unit of time.
Distance / Time Graph
Velocity / Time Graph
Speed
A graph where the slope of the line shows acceleration.
Distance / Time Graph
Velocity / Time Graph
Speed
A graph where the slope of the line shows speed.
Distance / Time Graph
Velocity / Time Graph
Speed
Pete traveled from his Starting Point (A) 3m - North, 5M - East, 3m - South, and 5m - West in 16 Seconds.
What is the total distance Pete traveled?
8m
10m
16m
6m
Pete traveled from his Starting Point (A) 3m - North, 5M - East, 3m - South, and 5m - West in 16 Seconds.
Calculate the speed in which Pete traveled his entire route.
1 m / s
2 m / s
0.5 m / s
1.5 m / s
Pete traveled from his Starting Point (A) 3m - North, 5M - East, 3m - South, and 5m - West in 16 Seconds.
What is Pete’s total displacement?
16 m
16 s
0 m
0 s
How do you calculate average speed?
Calculate total time.
Vf - Vi / ∆t
Calculate total distance.
Total Distance / Total Time
An Olympic swimmer swims 50.00 meters in 25 seconds. What was their average speed?
2 m / s
100 m / s
0.5 m / s
25 m / s
How do we calculate acceleration?
Calculate total time.
Vf - Vi / ∆t
Calculate total distance.
Total Distance / Total Time
A car traveling at 10 m/s starts to decelerate steadily. It comes to a complete stop in 20 seconds.
What is the acceleration of the car?
0.5 m / s
- 0.5 m / s2
2 m / s
- 2 m / s2
Which runner completed the 100 meters in the least amount of time.
Albert
Bob
Charlie
They all finished at the same time.
What was the time of the fastest runner?
10 seconds
12 seconds
14 seconds
16 seconds
What is Charlie doing between 8 and 12.5 seconds?
Slowing Down
Speeding Up
Constant Speed
Stopped
How much faster is the fastest runner running than the slowest runner?
Calculate the speed of each runner to find the answer.
0.9 m/s
1.2 m/s
1.8 m/s
2.4 m/s
A car is traveling at a constant velocity of 60 km/hr for 4 hrs. Which statement describes the acceleration of the car?
The acceleration of the car is positive.
The acceleration of the car is zero.
The acceleration of the car is negative.
The acceleration of the car is 15 m/s.
When a carousel is in motion, the movement of the carousel horse can best be described as what?
Acceleration; change in speed.
Acceleration; change in velocity.
Velocity; speed plus direction.
Speed; distance traveled over time.
Students are exploring the relationships between velocity and acceleration. This graph shows the acceleration of a remote-controlled toy car.
Which statement is true based on the graph?
Segment BC and Segment EF show constant speed.
Segment AB and Segments CD show positive acceleration.
Segment OA and Segment BC show constant speed.
Segment OA and Segment DE show positive acceleration.
Using the graph, which answer choice shows two points the train has no acceleration?
5-10 and 25-30 minutes.
5-10 and 15-25 minutes.
0-5 and 5-10 minutes.
0-5 and 25-30 minutes.
Calculate the trains acceleration between 10-15 minutes.
a = (Vf - Vi) / Δt
17 km/hr/min
5.7 km/hr/min
2 km/hr/min
6 km/hr/min.
Calculate the trains acceleration between 15-25 minutes.
a = (Vf - Vi) / Δt
3.4 km/hr/min.
8.5 km/hr/min.
5.7 km/hr/min.
0 km/hr/min.
Calculate the trains acceleration between 0-5 minutes.
a = (Vf - Vi) / Δt
11 km/hr/min.
8.5 km/hr/min.
5.7 km/hr/min.
0.90 km/hr/min.
Calculate the trains acceleration between 25-30 minutes.
a = (Vf - Vi) / Δt
-0.67 km/hr/min.
-4 km/hr/min.
-2.17 km/hr/min.
-2.83 km/hr/min.
Which section (in minutes) does the train experience the highest acceleration?
a = (Vf - Vi) / Δt
0-5 minutes
10-15 minutes
15-25 minutes
25-30 minutes
