F
O
R
C
E
100
What is a PUSH or PULL on an object?
Force
100
Is friction a contact or a noncontact force?
Contact
100
What non-contact force pulls a ball back to earth?
Gravity
100
The act of moving is ________________
motion
100
Why is it harder for the boy in picture B to get down the hill?
Friction
200
If these boys are each pulling with the same force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
They will not move at all. Balanced
200
The place where a thing or person is located is called the ________________
A. motion
B. position
C. speed
D. force
B. Position
200
Moving something away from your body
Push
200
If you have two magnets and you try to put the two north poles together, what will most likely happen?
They will repel
200
True or False. An object resting on the ground can move without a force
FALSE
300
Moving something towards your body
Pull
300
A force that resists motion
Friction
300
Repel means:
Push apart
300
True or False: Gravity is a force that pulls objects down to Earth.
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
____________ is how fast or slow an object is moving
Speed
400
You want to move two boxes. Which sentence correctly describes the force needed to move the boxes?
More force is needed to move the lighter box.
More force is needed to move the heavy box.
More force is needed to move the heavy box.
400
Which object would require the most force to move?
a tennis ball
a baby
a car
a cell phone
car, because it has the most mass
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
The parts of a magnet where the magnetic fields are strongest
The poles
500
Is gravity a contact or non-contact force?
non-contact. You don't have to be touching the surface of the Earth in order to get pulled towards it.
500
A car and truck are travelling down the road at the same speed. They both slow down with the same stopping force. Which statement best explains why the semi needs more distance than the car to stop.
A. The truck is longer.
B. The truck has larger wheels.
C. The truck has more mass.
D. The truck has less mass.
C. The truck has more mass.
500
The air blowing up on an air hockey table causes the puck to...?
A. Air balances the forces and makes the puck move faster.
B. Air causes the puck to slow down.
C. Air causes the puck to have less mass and travel farther.
D. Air reduces friction and allows the puck to move easily.
D. Air reduces friction and allows the puck to move easily.
500
The pushing or pulling force produced by a magnet
A. Invisible
B. Magnetism
C. Friction
D. Gravity
B. Magnetism
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. decrease the height of the ramp
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
A ____________ is an object that attracts iron
Magnet
600
Lodestone is a __________ that forms a natural magnet
rock
600
Name a metal that is not attracted to magnets
Copper, aluminum
600
What are 3 metals that are attracted to magnets?
Iron, nickel, cobalt, steel
600
What does attract mean?
Bring or come together