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WorksheetsForces and Motion Review
Total questions: 50
Worksheet time: 4hrs 10mins
You buy an extra large coke at QT and forget to put the lid on. A car pulls out in front of you and your mom yells, “Look out!” You hold your cup still so it won't spill. However, the coke still spills out. Which term explains this situation?
gravity
inertia
density
friction
A train was going down the track and a curve was approaching. The conductor went to apply the brake but they did not work. What can account for the train eventually slowing down even though there were no brakes?
The opposing force of friction stopped the train.
The train ran out of momentum
The natural state of the train is not to be in motion.
The force of gravity slowed the train until it stopped.
What is the acceleration difference between car 1 and car 2?
Car 1 starts & stops and Car 2 stays constant
Car 1 changes velocity and Car 2 increases and decreases its speed
Car 1 stays constant and Car 2 changes its speed during the trip
Car 2 stays constant and Car 1 changes its speed during the trip
Two PE classes are playing tug of war in gym class today. Which factor is most important in determining who will win excluding the number of players on each team?
The length of the rope
The temperature outside
The surface of the floor
The total mass of the team
Which baseball would have more acceleration with the same amount of force?
Both baseballs would have the same acceleration
The larger ball would have a faster acceleration.
The larger ball would have a slower acceleration.
Neither ball would have any acceleration.
What happened between the 12th and 14th hour of the trip?
The car turned around to go home but their speed remained constant.
The car slowed down and sped back up
The car travelled at a constant velocity
The car was not moving since there was no change in position
What must be true of the box's motion?
It is accelerating to the left
It is slowing down
It is moving to the right
It isn't accelerating.
With no forces acted upon it, an object at rest will stay at rest and an object in motion will stay in motion
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
The acceleration of an object depends on the net force and acting on it and the mass of the object. F = ma
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
For every action there is a reaction.
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
What type of force will it take to stop an object in motion?
Balanced
Magnetic
Gravitational
Unbalanced
Eli and Lacy each have soccer balls with the same mass. They both roll them as hard as they can and then measure the speed of each ball. Lacy rolls her ball exactly half as fast as Eli. What can you assume about the motion of the two balls?
Lacy's ball rolls twice as fast as Eli's ball.
Eli's ball rolls twice as fast as Lacy's ball.
Both balls roll the same speed.
Without knowing the mass we don't know the force.
How do these speed- time graphs compare?
The blue graph accelerates at a constant speed while the red graph is stopped.
The red graph is traveling at a constant speed while the green graph is stopped.
The blue graph is accelerating at a gradual and steady speed while the green graph is stopped.
The green graph is traveling at a constant speed while the red graph is gradually accelerating and then eventually stops
How many total seconds does Bailey stop on her walk to QT?
5 second
10 second
15 seconds
20 seconds
It is time for the annual pumpkin throwing contest. Which size pumpkin would go the farthest if each pumpkin were thrown with the same force?
18 pounds
10 pounds
12 pounds
6 pounds
Noah is pushing a wheelbarrow uphill. How can he make the wheelbarrow go faster?
He can take the wheels off the wheelbarrow
He can add weight to the load of the wheelbarrow
He can increase the force of his push.
He can decrease the force of his push
Why do these racecar drivers need to slow down when they approach a curve on the track?
The speed around a turn is proportional to the radius of curvature of the turn.
A body in motion stays in motion at the same speed
The speed of the car going into the turn must be conserved
A body in motion tends to continue in a straight line and requires a force to turn.
On Friday, Logan and Katie met at Roper Park. They jogged along the path side by side at the same speed to keep warm and make plans for Black Friday shopping. What must have been true about their jog?
They had different speeds but the same velocity
They had the same velocity but different speeds
The had different speeds and velocity
The had the same speeds and velocity
Daniella was playing tennis. She hit the ball with her racket and it went left and out of bounds, not straight towards her opponent. What does Newton’s First Law of Motion say about the travel of an object?
Inertia accelerates due to the unbalanced forces present.
An object at rest will move when external force is applied.
Every action has an equal and opposite reaction.
It will travel in a straight path unless changed by an external force.
What can you tell about the pitch of Ball #1?
Least Force and Slowest Speed
Most Force and Fastest Speed
Most Force and Slowest Speed
Least Force and Fastest Speed
Forces are measured in what unit?
Newtons
Kilograms
Meters
A force is
any object that has power
pushes or pulls on objects that put these objects into motion.
an object that is not in motion
Friction is...
the pull of gravity on the object’s mass.
the force that pushes or pulls an object.
a force created by a surface on an object that moves over it
Friction always is exerted (or applied) in the __________ direction of the object’s motion
same
opposite
If the friction force on an object is reduced,
the object will move slower.
the object will move faster.
What effect will adding a pair of balanced forces to an object that is already in motion have on the object's motion?
Because balanced forces have a net force of 0, the object will stay in motion.
Because balanced forces have a net force greater than 0, the object will stop.
What effect will adding a pair of balanced forces to an object that is at rest have on the object motion?
Because balanced forces have a net force of 0, the object will move.
Because balanced forces have a net force of 0, the object will stay at rest.
What effect will adding a pair of unbalanced forces to an object that is already in motion have on the object motion?
Because unbalanced forces have a net force greater than 0, the object will continue to be in motion.
Because unbalanced forces have a net force greater than 0, the object will either change direction or cease to be in motion.
Which statement is correct in regard to the relationship between an object mass and its inertia?
The greater the mass, the less inertia.
The less mass an object has, the less inertia.
The less mass an object has, the greater the inertia.
An object with a mass of 100 kg is moving at 5 m/s. How you might speed it up?
Increase the object's mass.
Decrease the object's mass.
Mark is having a yard sale. As he is pushing a cart carrying an aquarium down the sidewalk, the cart’s wheels hit a big crack in the sidewalk and the cart stops suddenly. The aquarium slides off the cart and crashes to the ground. Which of the following statement explains why this happened in terms of Newton's 1st law?
Mark is clumsy.
Due to F=ma, the mass of the aquarium is greater than the acceleration of the cart.
Due to inertia, the aquarium is still moving in the direction of the cart even though the cart has stopped.
When a surface becomes rougher, the force of friction acting on a moving object will_______________.
increase
decrease
stay the same
A unicyclist pedals 40 hours at 5 miles per hour without making any stops. How far does she get?
200 miles
8 miles
35 miles
45 miles
An old lady flew down the highway 600 miles in a side car. The journey in the side car took 10 hours. What was the velocity of the old woman in the side car?
6000 miles/hour
610 miles per hour
60 miles/hour
10 miles/hour
