Force and Motion 1
Force and Motion 2
Force and Motion 3
Force and Motion 4
100
a PUSH or PULL on an object
a Force
100
Evaluate EACH statement as True or False
1. Air resistance can reduce the pull of gravity.
2. In a vacuum, all objects accelerate toward earth at the same rate
3. An object's mass does NOT affect acceleration due to gravity as it falls
1. FALSE. Air resistance can slow down an object helping to counteract gravity, but gravity itself is not reduced.
2. TRUE
3. TRUE
100
F= M x __________.
Acceleration
100
Which situation best describes overcoming the force of gravity?
A. Sitting in a chair.
B. Jumping up and down.
C. Standing next to your friends.
D. Eating lunch.
B. Jumping up and down.
200
This will happen if these boys are each pulling with the force of 10 newtons.
What is the boy in blue will win?
What is they will not move at all?
What is the boy in red will win?
they will not move
OR
Balanced Forces
200
a change in velocity.
Acceleration
200
What force acts directly against the direction of motion and requires touch?
friction
200
A football gets punted and travels 90 meters in 9 seconds, what is the football’s speed?
10 m/s
300
Pick the true statement below...
1. balanced forces cause a change in velocity.
2. unbalanced forces cause a change in velocity.
3. forces do not affect the change in velocity.
unbalanced forces cause a change in velocity
300
Ariel pushes a friend sitting on a sled down an icy hill. Her friend moves a distance of 100 ft on the sled and it takes her 10 seconds. What will be the average speed?
10 ft/sec
300
Evaluate each statement as True or False:
1. Gravity is a force that pulls objects down to Earth.
2. Mass is dependent on gravity
3. Weight is is dependent on gravity
1. true
2. False
3. True
300
A golf ball rolls down a hill on the golf course. Which statement best describes how friction affects the motion of the golf ball?
A. Friction causes the golf ball to roll forwards and backwards.
B. Friction decreases how far the ball rolls.
C. Friction increases how fast the ball rolls.
D. Friction causes the ball to bounce.
B. Friction decreases how far the ball rolls.
400
how do you calculate speed?
Speed = distance / time?
400
You want to move two boxes. Which box will require more force to move it?
A. 8 kg box
B. 1 kg box
A. 8 kg box
400
A soccer ball is at rest on the ground. When a force is applied to it, it moves. If larger force is applied to it, how will the motion of the soccer ball change?
A. The ball will move less distance with less speed.
B. The ball will move farther with less speed.
C. The ball will move farther with more speed.
D. The ball will move less with more speed.
C. The ball will move farther with more speed.
400
Describe the difference between weight and mass.
Weight is a measure of gravity on a mass. Mass is the amount of matter in an object.
500
When the mass of an object increases, so does this ____________ from Newton's first law.
inertia
500
A car and semi are travelling down the road at the same speed. They both slow down with the same stopping force. This statement best explains why the semi needs more distance than the car to stop.
A. The semi is longer.
B. The semi has larger wheels.
C. The semi has more inertia.
D. The semi has less inertia.
(c) the semi has more inertia
500
A heavy box sits on the floor with the force of 3 N pushing left and the force of 5 N pushing right. Gravity is pulling the box down to the floor with 2 N and the force of the floor is pushing the box up with 2 N. Which statement best identifies the result of all forces acting on the box?
A. The box doesn't move at all.
B. The box moves left.
C. The box moves right.
D. The box moves downward.
C. The box moves right.
500
Children are applying force to roll a ball down a ramp and measuring how fast the ball rolls. If the children want the ball to roll faster down the ramp, what should they do?
A. increase the force applied to the ball.
B. get a heavier ball
C. decrease the angle of the ramp
D. increase the friction between the ball and the ramp
A. increase the force applied to the ball.
600
For every action_________________________.
there is an equal and opposite reaction
600
What is the net force represented in the picture below?
400 N down
600
In order for an object that to move at a constant speed OR remain at rest, the forces need to be ____________.
Balanced
600
Draw a distance time graph and a velocity time graph. Draw a line that represent CONSTANT SPEED on each graph.
Distance-Time: Linear increasing line
Velocity-Time: Horizontal (flat) line anywhere above the X-axis